Irrigon, OR — Planting Guide for June
Free PDF, personalized for your town's frost dates & climate. Drop your email — we'll send the link.
Your June gardening checklist
A quick June briefing for Morrow County, Oregon gardeners — what's urgent, what's next, and what can wait.
-
Time to start basil, peppers, and pole beans inside
A seed-starting mix and a sunny window (or a grow light) are all you need. Keep soil warm — around 70°F — for fast germination.
-
Pick carrots, green beans, and kale
If you can't use it all right away, check the food-preservation section of your planner.
Get ahead of July
- Starting indoors: begonias, geraniums, and hostas
- First harvests: basil, carrots, and cucumber
Irrigon gardens in a dry climate (only 8" annual precipitation). Watering strategy matters more here than in most of the country — drip irrigation, deep mulching, and morning watering aren't optional, they're table stakes. The flip side: pest and disease pressure are far lower than in humid regions, and your soil temperatures climb fast in spring so you can plant heat-lovers earlier than the zone map suggests.
Soils trend Silt Loam — the gold standard for vegetables. Add 2–3" of compost annually to maintain it and you'll outgrow most of your neighbors.
Irrigon averages 30.0 drought weeks per year (US Drought Monitor, 2000–present, trend stable). Treat irrigation as a year-round system, not a summer add-on.
🌡️ USDA Zone
7b (5°F to 10°F min)
❄️ Avg. Last Frost
April 25
🍂 Avg. First Frost
October 15
📅 Growing Season
173 days
🌧️ Climate
Arid 8.0" annual
💨 Wind
Moderate 7.2 mph avg
🥶 Frost Tier
Regular 0% frost-free years
🏜️ Drought
30.0 wk/yr trend stable
📍 ZIP Codes
1 ZIP
Monthly Watering Calendar for Irrigon
When you'll need to water your garden — based on average monthly rainfall vs. the ~1 inch/week most gardens need.
Why it matters: Most vegetables want about 1 inch of water per week. Irrigon gets 8" a year — months that hit that 1"/week need zero supplemental watering; months that fall short, the table tells you how much to add. Saves you from drowning roots and from drought-stressing plants into bolting.
View detailed monthly data
| Month | Avg Rainfall | Rainy Days | Extra Water Needed | Watering Effort |
|---|---|---|---|---|
| Jan | 3 in | 20 days | — | None |
| Feb | 2.8 in | 13 days | — | None |
| Mar | 2.1 in | 15 days | 2.2 in | High |
| Apr | 1.4 in | 12 days | 2.9 in | High |
| May | 1.2 in | 10 days | 3.1 in | Critical |
| Jun | 0.7 in | 7 days | 3.6 in | Critical |
| Jul | 0.4 in | 3 days | 3.9 in | Critical |
| Aug | 0.4 in | 2 days | 3.9 in | Critical |
| Sep | 0.8 in | 5 days | 3.5 in | Critical |
| Oct | 1.7 in | 12 days | 2.6 in | High |
| Nov | 3.2 in | 16 days | — | None |
| Dec | 3.2 in | 16 days | — | None |
Annual total: 20.9 in. Water needs vary by crop — tomatoes need ~1.2"/week while herbs like rosemary need only 0.3"/week. Check individual plant pages for crop-specific water budgets that factor in your county's rainfall and soil drainage.
Irrigon Soil Profile
Soil Type
Silt Loam
Soil pH
5.4-6.8
Drainage
Well Drained
Frost Risk Probability
Based on 31 years of NOAA weather station data from 3 stations
Beginners: Plant frost-sensitive crops (tomatoes, peppers, squash) after the "Safe" date on the left. Harvest or cover them before the "Protect by" date on the right. Hardy crops (lettuce, peas, kale) can go in the yellow transition zones.
How to read this table: "Conservative" means you're safe from frost 9 out of 10 years — best for beginners and frost-sensitive crops. "Average year" is the typical date. "Aggressive" means only 1 in 10 years is that warm — experienced gardeners with frost protection can try these dates.
| Planting Strategy | Last Spring Frost | First Fall Frost | Frost-Free Days |
|---|---|---|---|
| Conservative (safest) | May 13 | Nov 3 | 174 days |
| Cautious | May 4 | Oct 24 | 173 days |
| Average year | Apr 25 | Oct 15 | 173 days |
| Optimistic | Apr 14 | Oct 5 | 174 days |
| Aggressive (risky) | Mar 30 | Sep 27 | 181 days |
Not very — frost dates can vary by ±44 days year-to-year. Use the "Conservative" row in the table below, and keep row covers handy for surprise late frosts.
Slightly — seasons are trending a bit shorter (0.7 days/decade). Stay conservative with planting dates.
Gardening Difficulty Score
Morrow County presents some gardening challenges. Choose adapted varieties and plan around frost dates.
Local Gardening Help in Morrow County
Free expert help is closer than you think. Your county's cooperative extension office connects you with trained gardeners, soil testing labs, and local programs — all specific to Morrow County's climate and soil.
County Extension Office
Morrow County Oregon State University Extension Extension Office
Phone: 541-737-2713
Visit Extension Office Website →
Extension offices are run by land-grant universities and funded by the USDA. Their advice is free, research-based, and tailored to your county's specific conditions.
Master Gardener Program
Free gardening help from trained volunteers
Master Gardeners are community volunteers who complete 40–60 hours of university horticultural training. They answer gardening questions, diagnose plant problems, and offer workshops — all free.
Many extension offices run a Master Gardener hotline where you can call or email with photos of plant problems for free diagnosis.
Soil Testing
Available through your extension office
Before amending your soil, get it tested. Your extension office offers soil testing (typically $10–$25) that tells you exact pH, nutrient levels, and amendment recommendations specific to what you want to grow.
Services Available in Morrow County
Finding local nurseries & garden centers in Morrow County
Why Buy Local
Local nurseries carry plants that are proven to grow in your area. Staff can give you advice specific to Morrow County's soil and climate that big-box stores can't. Plants from local growers are typically hardier because they're already acclimated to your zone.
How to Find Them
Search for "nurseries near Morrow County OR" or "garden center Morrow County" on Google Maps. Also check with your extension office — they often maintain lists of reputable local nurseries and plant sales.
Community gardens & gardening groups
Community gardens are a great way to learn from experienced gardeners in your area, especially if you're limited on space. Search "community garden Morrow County OR" or check your extension office and local parks department. Facebook groups like "Morrow County Gardeners" or "Oregon Gardening" are also excellent for local advice and plant swaps.
What to Plant After Your Harvest
After your first crops finish, use the remaining frost-free days to grow a second round.
Show 6 more succession options
Sunlight & Day Length in Irrigon
Monthly daylight hours and peak sun — critical for onion varieties, photoperiod-sensitive plants, and solar garden planning.
For new gardeners: Photoperiod-sensitive crops will fail spectacularly if planted at the wrong latitude. Sweet onions in Michigan? Tiny. Spanish onions in Florida? Tiny. Match variety to Irrigon's daylight pattern and you'll see the difference.
Longest Day
15.4 hours
Summer solstice daylight
Shortest Day
8.5 hours
Winter solstice daylight
Peak Sun Hours
10.2 hr/day peak (summer)
Peak sun hours (green dashed line below) account for cloud cover — this is the usable direct sunlight your garden actually receives. Most vegetables need 6+ peak sun hours.
Onion tip: Your long summer days (14+ hours) support long-day onion varieties like Walla Walla, Sweet Spanish, and Ailsa Craig.
View detailed monthly data
| Month | Daylight Hours | Peak Sun Hours | Day Length |
|---|---|---|---|
| January | 8.9 hr | 2.2 hr | Short day |
| February | 10.2 hr | 3.2 hr | Short day |
| March | 11.6 hr | 4.2 hr | Short day |
| April | 13.3 hr | 5.4 hr | Neutral |
| May | 14.7 hr | 7.2 hr | Long day |
| June | 15.4 hr | 8.5 hr | Long day |
| July | 15.1 hr | 10.2 hr | Long day |
| August | 13.9 hr | 9.4 hr | Neutral |
| September | 12.3 hr | 7.1 hr | Neutral |
| October | 10.7 hr | 4.1 hr | Short day |
| November | 9.3 hr | 2.2 hr | Short day |
| December | 8.5 hr | 1.9 hr | Short day |
Peak sun hours factor in typical cloud cover — use these for solar panel and shade-planning calculations.
Soil Temperature & Composting in Irrigon
Monthly soil temps tell you when to plant warm-season crops, and when your compost pile is actively working.
Quick context: Soil heats slower than air in spring and cools slower in fall. That's why "warm" April air doesn't mean "plant tomatoes" — soil still trails by weeks. Irrigon's monthly soil curve makes the lag visible.
Plant Warm Crops When
Soil reaches 60°F+
Soil warm enough from Jun through Sep.
Best Month to Compost
Jun
Microbial activity peaks when soil is warm.
Active Composting
6 months
Solid season. Piles go dormant in winter.
View detailed monthly data
| Month | Soil 4" Deep | Soil 8" Deep | Compost Activity | Time to Finish |
|---|---|---|---|---|
| Jan | 25°F | 35°F | ❄️ Dormant | ~36 weeks |
| Feb | 28°F | 32°F | ❄️ Dormant | ~36 weeks |
| Mar | 33°F | 37°F | ❄️ Dormant | ~36 weeks |
| Apr | 44°F | 45°F | 🐢 Slow | ~24 weeks |
| May | 57°F | 55°F | ♻️ Active | ~14 weeks |
| Jun | 66°F | 64°F | 🔥 Peak | ~8 weeks |
| Jul | 76°F | 71°F | 🔥 Peak | ~8 weeks |
| Aug | 77°F | 71°F | 🔥 Peak | ~8 weeks |
| Sep | 69°F | 70°F | 🔥 Peak | ~8 weeks |
| Oct | 56°F | 62°F | ♻️ Active | ~14 weeks |
| Nov | 43°F | 49°F | 🐢 Slow | ~24 weeks |
| Dec | 31°F | 39°F | ❄️ Dormant | ~36 weeks |
Highlighted rows = soil 60°F+ (safe for warm-season transplants). Compost finishes fastest during peak activity months.
Pest & Disease Pressure in Irrigon
Computed from local climate patterns — warmer, humid conditions increase pest generations and fungal disease risk.
For new gardeners: Pest score isn't pass/fail. It's a planning input. Higher scores mean: more compost (resilient plants), wider spacing (air circulation), resistant varieties (built-in defense), and inspection (catch issues at egg stage).
Insect Pest Pressure
Moderate — common pests appear but manageable with monitoring.
Disease Risk
Low disease risk — dry conditions reduce fungal problems.
Seasonal Risk
View 6 common pests in your area
| Pest | Risk Level | Peak Months |
|---|---|---|
| Aphids | High | Apr, May, Jun, Jul, Aug, Sep |
| Japanese beetles | Moderate | Jun, Jul, Aug |
| Squash vine borers | Moderate | Jun, Jul |
| Tomato hornworms | Moderate | Jun, Jul, Aug |
| Cucumber beetles | Low | May, Jun, Jul |
| Stink bugs | Low | Jun, Jul, Aug, Sep |
Organic pest management tips
- Use row covers on susceptible crops during peak pest months
- Apply neem oil preventatively every 7-14 days during active pest season
- Interplant with strong-scented herbs (basil, marigold) to confuse pests
- Hand-pick larger pests (beetles, caterpillars) in early morning when they're sluggish
- Practice crop rotation — never plant the same family in the same spot within 3 years
Cover Crops for Irrigon
Cover crops protect bare soil, fix nitrogen, suppress weeds, and improve soil structure — with planting dates calibrated for your area.
Quick context: A fall-planted cover crop in Irrigon is the closest thing to free soil amendment. Plant cereal rye or hairy vetch after harvest; chop it down before it flowers in spring; the soil it leaves behind out-grows any store-bought compost.
Spring Cover Crops (3 options) — Build soil before the main growing season
| Crop | Plant By | Terminate | N-Fixing | Soil Benefit |
|---|---|---|---|---|
| Buckwheat | Apr 30 | Aug 6 | — | Rapid growth, attracts pollinators, suppresses weeds |
| Sorghum-sudan grass | May 1 | Aug 20 | — | Massive biomass, breaks compaction, suppresses nematodes |
| White clover | Mar 28 | Aug 20 | ✓ Yes | Living mulch, fixes nitrogen, permanent ground cover |
Summer Cover Crops (1 options) — Fill gaps and suppress weeds between plantings
| Crop | Plant By | Terminate | N-Fixing | Soil Benefit |
|---|---|---|---|---|
| Sunflowers | May 13 | Sep 17 | — | Deep roots break compaction, attract pollinators and beneficial insects |
Fall Cover Crops (7 options) — Plant after harvest to protect soil over winter
| Crop | Plant By | Terminate | N-Fixing | Soil Benefit |
|---|---|---|---|---|
| Austrian winter peas | Aug 12 | Apr 11 | ✓ Yes | Fixes nitrogen, good for heavy clay soils |
| Crimson clover | Aug 5 | Apr 11 | ✓ Yes | Fixes nitrogen, attracts pollinators in spring |
| Daikon radish | Aug 21 | Apr 11 | — | Deep taproot breaks compaction, excellent for clay soils |
| Hairy vetch | Jul 28 | Apr 11 | ✓ Yes | Excellent nitrogen fixer, good for depleted soils |
| Oats | Sep 14 | Apr 11 | — | Quick biomass, winterkills in cold zones — no spring tillage needed |
| Winter rye | Jul 8 | Apr 4 | — | Suppresses weeds, prevents erosion, breaks up compacted soil |
| Winter wheat | Jul 20 | Apr 4 | — | Erosion control, weed suppression, good biomass |
Wind & Microclimate in Irrigon
The practical takeaway: Wind affects three things gardeners forget: how fast soil dries (more wind = more watering), whether pollinators can work (calm beats gusty), and whether your trellised crops stay upright. Irrigon sees 7.2 mph on average — a forgiving baseline.
Wind dries soil, stresses plants, and affects frost patterns. Understanding your exposure helps with garden placement.
Seasonal Wind Speed
Spring: 9 mph Summer: 9 mph
Fall: 10 mph Winter: 10 mph
Prevailing wind: SW. Moderate wind — consider a temporary windbreak for young seedlings.
Windbreak Benefit
4.8/10
Moderately beneficial — a simple fence or trellis can protect delicate crops from wind stress.
Frost Pocket Risk
Moderate
Some terrain variation (619 ft range). Garden on slopes or higher ground if possible to avoid late-season frost pockets.
Rainwater Harvesting in Irrigon
How much water you can collect, when to collect it, and what size system you need for your garden.
What this means for you: Even in arid regions, rainwater harvesting works — you just need bigger storage and patience. In wet regions like Irrigon (8" annually), you're mostly limited by how much water you can store between storms.
Annual Collection
10,416 gal
Per 1,000 sq ft of roof area (at 80% collection efficiency)
Recommended Setup
7 rain barrels (55 gal each)
For a typical 500 sq ft garden. Serious collectors: consider a 2,250 gal tank.
Legal Status
Unrestricted
Rainwater harvesting is fully legal in your state with no restrictions.
Best Collection Months
Jan, Feb, Nov, Dec
Highest rainfall months — your barrels will fill up quickly during these months.
Months to Draw From Storage
Jun, Jul, Aug, Sep
Dry months when you'll rely on stored water — size your storage for this gap.
Rainwater collection tips for your area
- Your county receives approximately 20.9 inches of rain per year
- A 1,000 sq ft roof can collect roughly 10,416 gallons annually
- Rainwater harvesting is fully legal in your state
- Stock up on stored water before your dry season (Jun, Jul, Aug)
- Use a first-flush diverter to keep roof debris out of your collection
🥬 Vegetables to Grow in Irrigon
112 vegetables matched to Zone 7b with planting dates calibrated for Irrigon.
Show all 112 vegetables with dates
| Plant | Start Indoors | Direct Sow | Transplant | Fall Plant | Harvest | Days to Maturity |
|---|---|---|---|---|---|---|
| Acorn Squash | Mar 28 | May 2 | May 9 | — | Aug 1 – Sep 5 | 80–100 |
| Amaranth | Mar 7 | May 2 | May 9 | — | Aug 8 – Sep 26 | 90–120 |
| Artichoke | — | — | May 9 | — | Sep 12 – Nov 21 | 120–180 |
| Arugula | Mar 21 | Apr 11 | Apr 25 | Aug 6 | May 30 – Aug 1 | 30–50 |
| Asparagus | — | — | May 9 | — | — | 730–1095 |
| Beets | — | Apr 11 | — | Aug 6 | Jun 6 – Jul 4 | 50–70 |
| Belgian Endive | Mar 21 | Apr 11 | Apr 25 | Aug 6 | Aug 15 – Oct 10 | 110–150 |
| Bitter Melon | Mar 7 | May 2 | May 9 | — | Jul 11 – Aug 22 | 60–90 |
| Black Beans | — | May 2 | — | — | Aug 1 – Sep 19 | 90–120 |
| Bok Choy | Mar 21 | Apr 11 | Apr 25 | Aug 6 | Jun 6 – Jul 11 | 40–60 |
| Broccoli | Mar 21 | Apr 11 | Apr 25 | Aug 6 | Jun 27 – Aug 8 | 60–90 |
| Broccoli Rabe | Mar 21 | Apr 11 | Apr 25 | Aug 6 | Jun 6 – Jul 11 | 40–60 |
| Brussels Sprouts | Mar 21 | Apr 11 | Apr 25 | Aug 6 | Jul 25 – Sep 19 | 90–130 |
| Butternut Squash | Mar 28 | May 2 | May 9 | — | Aug 8 – Sep 12 | 85–110 |
| Cabbage | Mar 21 | Apr 11 | Apr 25 | Aug 6 | Jun 27 – Aug 22 | 60–100 |
| Calabash | Mar 7 | May 2 | May 9 | — | Aug 1 – Sep 26 | 80–120 |
| Cardoon | — | — | May 9 | — | Sep 12 – Oct 24 | 120–150 |
| Carrots | — | Apr 11 | — | Aug 6 | Jun 13 – Jul 18 | 60–80 |
| Cauliflower | Mar 21 | Apr 11 | Apr 25 | Aug 6 | Jun 20 – Aug 22 | 55–100 |
| Celeriac | Mar 21 | Apr 11 | Apr 25 | Aug 6 | Aug 8 – Sep 12 | 100–120 |
| Celery | Mar 21 | Apr 11 | Apr 25 | Aug 6 | Jul 18 – Sep 12 | 80–120 |
| Celtuce | Mar 21 | Apr 11 | Apr 25 | Aug 6 | Jun 27 – Aug 8 | 60–90 |
| Chard | Mar 21 | Apr 11 | Apr 25 | Aug 6 | Jun 20 – Aug 8 | 50–60 |
| Chayote | Mar 7 | May 2 | May 9 | — | Sep 12 – Nov 21 | 120–180 |
| Chickpeas | Mar 21 | Apr 11 | Apr 25 | Aug 6 | Jul 18 – Aug 29 | 80–110 |
| Chicory | Mar 21 | Apr 11 | Apr 25 | Aug 6 | Jun 27 – Aug 8 | 60–85 |
| Chinese Cabbage | Mar 21 | Apr 11 | Apr 25 | Aug 6 | Jun 20 – Jul 18 | 50–70 |
| Christmas Lima Beans | Mar 7 | May 2 | May 9 | — | Aug 1 – Sep 5 | 80–100 |
| Collard Greens | Mar 21 | Apr 11 | Apr 25 | Aug 6 | Jun 20 – Aug 22 | 55–75 |
| Corn | — | May 2 | — | — | Jul 4 – Aug 29 | 60–100 |
| Cowpeas | — | May 2 | — | — | Jul 4 – Aug 15 | 60–90 |
| Cress | Mar 21 | Apr 11 | Apr 25 | Aug 6 | May 9 – May 30 | 14–21 |
| Crookneck Squash | Mar 28 | May 2 | May 9 | — | Jun 27 – Jul 25 | 45–60 |
| Crosne | — | Apr 11 | — | Aug 6 | Sep 12 – Nov 14 | 150–200 |
| Cucumber | Mar 28 | May 2 | May 9 | — | Jul 4 – Aug 29 | 50–70 |
| Daikon | — | Apr 11 | — | Aug 6 | Jun 6 – Jul 4 | 50–70 |
| Delicata Squash | Mar 28 | May 2 | May 9 | — | Aug 1 – Sep 5 | 80–100 |
| Edamame | — | May 2 | — | — | Jul 18 – Aug 29 | 75–100 |
| Eggplant | Feb 21 | May 2 | May 9 | — | Jul 18 – Sep 19 | 65–85 |
| Endive | Mar 21 | Apr 11 | Apr 25 | Aug 6 | Jun 13 – Jul 18 | 45–65 |
| Escarole | Mar 21 | Apr 11 | Apr 25 | Aug 6 | Jun 20 – Jul 18 | 50–70 |
| Fava Beans | Mar 21 | Apr 11 | Apr 25 | Aug 6 | Jul 11 – Aug 22 | 75–100 |
| Fennel | Mar 7 | May 2 | May 9 | — | Jul 11 – Aug 22 | 60–90 |
| Garlic | — | — | — | Sep 3 | Dec 3 – Apr 15 | 90–240 |
| Green Beans | — | May 2 | — | — | Jun 27 – Aug 22 | 50–65 |
| Horseradish | — | — | May 9 | — | Sep 12 – Nov 21 | 120–180 |
| Hot Peppers | Feb 21 | May 2 | May 9 | — | Jul 18 – Oct 24 | 70–120 |
| Hubbard Squash | Mar 28 | May 2 | May 9 | — | Aug 22 – Sep 26 | 100–120 |
| Jicama | Mar 7 | May 2 | May 9 | — | Sep 12 – Nov 21 | 120–180 |
| Kabocha | Mar 28 | May 2 | May 9 | — | Aug 8 – Sep 5 | 85–100 |
| Kai Lan | Mar 21 | Apr 11 | Apr 25 | Aug 6 | Jun 13 – Jul 11 | 45–60 |
| Kale | Mar 21 | Apr 11 | Apr 25 | Aug 6 | Jun 20 – Aug 15 | 50–70 |
| Kidney Beans | — | May 2 | — | — | Aug 1 – Sep 5 | 85–110 |
| Kohlrabi | Mar 21 | Apr 11 | Apr 25 | Aug 6 | Jun 13 – Jul 18 | 45–65 |
| Komatsuna | Mar 21 | Apr 11 | Apr 25 | Aug 6 | May 30 – Jul 4 | 35–50 |
| Leeks | Mar 21 | Apr 11 | Apr 25 | Aug 6 | Jul 25 – Oct 10 | 90–150 |
| Lentils | Mar 21 | Apr 11 | Apr 25 | Aug 6 | Jul 18 – Aug 29 | 80–110 |
| Lettuce | Mar 21 | Apr 11 | Apr 25 | Aug 6 | May 30 – Aug 8 | 30–60 |
| Lima Beans | — | May 2 | — | — | Jul 4 – Aug 15 | 60–90 |
| Loofah | Mar 7 | May 2 | May 9 | — | Aug 22 – Oct 24 | 100–150 |
| Luffa | Mar 7 | May 2 | May 9 | — | Aug 8 – Oct 24 | 90–150 |
| Mache | Mar 21 | Apr 11 | Apr 25 | Aug 6 | Jun 6 – Jul 11 | 40–60 |
| Malabar Spinach | Mar 7 | May 2 | May 9 | — | Jul 4 – Aug 1 | 55–70 |
| Melon | Mar 28 | May 2 | May 9 | — | Jul 18 – Sep 5 | 70–100 |
| Microgreens | Mar 21 | Apr 11 | Apr 25 | Aug 6 | May 2 – May 30 | 7–21 |
| Mitsuba | Mar 21 | Apr 11 | Apr 18 | Aug 6 | Jun 13 – Aug 8 | 50–70 |
| Mizuna | Mar 21 | Apr 11 | Apr 25 | Aug 6 | May 30 – Jun 27 | 30–45 |
| Mustard Greens | Mar 21 | Apr 11 | Apr 25 | Aug 6 | May 30 – Aug 1 | 30–50 |
| Napa Cabbage | Mar 21 | Apr 11 | Apr 25 | Aug 6 | Jun 20 – Jul 25 | 55–75 |
| New Zealand Spinach | Mar 7 | May 2 | May 9 | — | Jul 4 – Aug 1 | 55–70 |
| Okra | Mar 7 | May 2 | May 9 | — | Jul 4 – Aug 29 | 50–65 |
| Onion | Mar 21 | Apr 11 | Apr 25 | Aug 6 | Jul 25 – Sep 12 | 90–120 |
| Pac Choi | Mar 21 | Apr 11 | Apr 25 | Aug 6 | Jun 6 – Jul 4 | 40–55 |
| Parsnip | — | Apr 11 | — | Aug 6 | Jul 25 – Sep 5 | 100–130 |
| Patty Pan Squash | Mar 28 | May 2 | May 9 | — | Jun 27 – Jul 25 | 45–60 |
| Peas | Mar 21 | Apr 11 | Apr 25 | Aug 6 | Jun 20 – Aug 15 | 55–70 |
| Peppers | Feb 21 | May 2 | May 9 | — | Jul 11 – Sep 19 | 60–90 |
| Pole Beans | Mar 7 | May 2 | May 9 | — | Jul 4 – Aug 29 | 55–70 |
| Potatoes | Mar 7 | May 2 | May 9 | — | Jul 18 – Sep 26 | 70–120 |
| Pumpkin | Mar 28 | May 2 | May 9 | — | Aug 8 – Sep 26 | 85–120 |
| Purslane | Mar 21 | Apr 11 | Apr 25 | Aug 6 | Jun 6 – Jul 11 | 40–60 |
| Radicchio | Mar 21 | Apr 11 | Apr 25 | Aug 6 | Jun 27 – Aug 1 | 60–80 |
| Radish | — | Apr 11 | — | Aug 6 | May 9 – May 30 | 22–35 |
| Rhubarb | — | — | May 16 | — | — | 365–730 |
| Romanesco | Mar 21 | Apr 11 | Apr 25 | Aug 6 | Jul 11 – Aug 22 | 75–100 |
| Rutabaga | — | Apr 11 | — | Aug 6 | Jul 4 – Aug 8 | 80–100 |
| Salsify | — | Apr 11 | — | Aug 6 | Jul 25 – Sep 5 | 100–130 |
| Savoy Cabbage | Mar 21 | Apr 11 | Apr 25 | Aug 6 | Jul 4 – Aug 29 | 70–110 |
| Scallions | Mar 21 | Apr 11 | Apr 25 | Aug 6 | Jun 20 – Jul 18 | 50–70 |
| Scarlet Runner Beans | Mar 7 | May 2 | May 9 | — | Jul 11 – Aug 15 | 60–80 |
| Shallot | Mar 21 | Apr 11 | Apr 25 | Aug 6 | Jul 25 – Sep 12 | 90–120 |
| Shiso | Mar 7 | May 2 | May 9 | — | Jul 4 – Aug 29 | 50–70 |
| Snap Peas | Mar 7 | May 2 | May 9 | — | Jul 4 – Aug 29 | 55–70 |
| Snow Peas | Mar 21 | Apr 11 | Apr 25 | Aug 6 | Jun 20 – Aug 15 | 50–65 |
| Soybeans | — | May 2 | — | — | Jul 25 – Sep 19 | 80–120 |
| Spaghetti Squash | Mar 28 | May 2 | May 9 | — | Aug 8 – Sep 5 | 85–100 |
| Spinach | Mar 21 | Apr 11 | Apr 25 | Aug 6 | May 30 – Aug 1 | 35–50 |
| Squash (Summer) | Mar 28 | May 2 | May 9 | — | Jun 27 – Aug 29 | 45–65 |
| Squash (Winter) | Mar 28 | May 2 | May 9 | — | Aug 1 – Sep 26 | 80–120 |
| Sunchoke | — | — | May 9 | — | Aug 29 – Oct 24 | 110–150 |
| Sweet Corn | — | May 2 | — | — | Jul 4 – Aug 15 | 60–90 |
| Sweet Potatoes | Mar 7 | May 2 | May 9 | — | Aug 8 – Sep 26 | 90–120 |
| Tatsoi | Mar 21 | Apr 11 | Apr 25 | Aug 6 | May 30 – Jul 4 | 35–50 |
| Tomatillo | Mar 7 | May 2 | May 9 | — | Jul 11 – Sep 19 | 60–85 |
| Tomatoes | Mar 7 | May 2 | May 9 | — | Jul 11 – Sep 19 | 60–85 |
| Turnip | — | Apr 11 | — | Aug 6 | May 23 – Jun 27 | 40–60 |
| Watercress | Mar 21 | Apr 11 | Apr 25 | Aug 6 | Jun 6 – Jul 11 | 40–60 |
| Watermelon | Mar 28 | May 2 | May 9 | — | Jul 18 – Sep 5 | 70–100 |
| Wax Beans | — | May 2 | — | — | Jun 27 – Aug 22 | 50–65 |
| Winter Melon | Mar 7 | May 2 | May 9 | — | Aug 8 – Sep 26 | 90–120 |
| Yard Long Beans | Mar 7 | May 2 | May 9 | — | Jul 4 – Aug 15 | 55–80 |
| Zucchini | Mar 28 | May 2 | May 9 | — | Jun 27 – Aug 22 | 45–60 |
🍓 Fruits to Grow in Irrigon
31 fruits matched to Zone 7b with planting dates calibrated for Irrigon.
Show all 31 fruits with dates
| Plant | Start Indoors | Direct Sow | Transplant | Fall Plant | Harvest | Days to Maturity |
|---|---|---|---|---|---|---|
| Alpine Strawberries | — | — | May 16 | — | Aug 15 – Nov 28 | 90–180 |
| Aronia | — | — | May 16 | — | — | 730–1095 |
| Blackberries | — | — | May 16 | — | — | 365–730 |
| Blueberries | — | — | May 16 | — | — | 730–1095 |
| Boysenberries | — | — | May 16 | — | — | 365–730 |
| Cantaloupe | — | — | May 16 | — | Jul 25 – Aug 29 | 70–90 |
| Che Fruit | — | — | May 16 | — | — | 1095–1825 |
| Cranberries | — | — | May 16 | — | — | 730–1095 |
| Currants | — | — | May 16 | — | — | 730–1095 |
| Elderberries | — | — | May 16 | — | — | 730–1095 |
| Figs | — | — | May 16 | — | — | 730–1825 |
| Goji Berries | — | — | May 16 | — | — | 730–1095 |
| Gooseberries | — | — | May 16 | — | — | 730–1095 |
| Grapes | — | — | May 16 | — | — | 730–1095 |
| Ground Cherry | — | — | May 16 | — | Jul 25 – Sep 19 | 65–80 |
| Hardy Kiwi | — | — | May 16 | — | — | 1095–1825 |
| Haskaps | — | — | May 16 | — | — | 730–1095 |
| Honeydew | — | — | May 16 | — | Aug 8 – Sep 19 | 80–110 |
| Jostaberry | — | — | May 16 | — | — | 730–1095 |
| Kiwi | — | — | May 16 | — | — | 1095–1825 |
| Lingonberries | — | — | May 16 | — | — | 730–1095 |
| Loquat | — | — | May 16 | — | — | 730–1825 |
| Medlar | — | — | May 16 | — | — | 1095–1825 |
| Mulberries | — | — | May 16 | — | — | 730–1825 |
| Pawpaw | — | — | May 16 | — | — | 1095–2555 |
| Persimmon | — | — | May 16 | — | — | 1095–2555 |
| Pomegranate | — | — | May 16 | — | — | 730–1095 |
| Quince | — | — | May 16 | — | — | 1095–1825 |
| Raspberries | — | — | May 16 | — | — | 365–730 |
| Serviceberries | — | — | May 16 | — | — | 730–1095 |
| Strawberries | — | — | May 16 | — | Aug 15 – Dec 26 | 90–365 |
🌿 Herbs to Grow in Irrigon
36 herbs matched to Zone 7b with planting dates calibrated for Irrigon.
Show all 36 herbs with dates
| Plant | Start Indoors | Direct Sow | Transplant | Fall Plant | Harvest | Days to Maturity |
|---|---|---|---|---|---|---|
| Angelica | Mar 21 | Apr 11 | Apr 18 | Aug 6 | — | 365–730 |
| Anise | Mar 21 | Apr 11 | Apr 18 | Aug 6 | Jul 18 – Oct 3 | 90–120 |
| Basil | Mar 7 | May 2 | May 9 | — | Jul 4 – Sep 5 | 50–75 |
| Bee Balm | — | — | May 2 | — | Aug 1 – Oct 17 | 90–120 |
| Borage | Mar 21 | Apr 11 | Apr 18 | Aug 6 | Jun 13 – Aug 1 | 50–60 |
| Caraway | Mar 21 | Apr 11 | Apr 18 | Aug 6 | — | 365–450 |
| Catnip | — | — | May 2 | — | Jul 4 – Sep 5 | 60–80 |
| Chamomile | Mar 21 | Apr 11 | Apr 18 | Aug 6 | Jun 20 – Aug 29 | 60–90 |
| Chervil | Mar 21 | Apr 11 | Apr 18 | Aug 6 | May 30 – Aug 1 | 40–60 |
| Chives | — | — | May 2 | — | Jul 4 – Sep 12 | 60–90 |
| Cilantro | Mar 21 | Apr 11 | Apr 18 | Aug 6 | May 30 – Aug 1 | 40–60 |
| Comfrey | — | — | May 2 | — | Jul 4 – Sep 12 | 60–90 |
| Cumin | Mar 21 | Apr 11 | Apr 18 | Aug 6 | Aug 1 – Oct 3 | 100–120 |
| Dill | Mar 21 | Apr 11 | Apr 18 | Aug 6 | May 30 – Aug 1 | 40–60 |
| Epazote | Mar 7 | May 2 | May 9 | — | Jun 27 – Aug 22 | 45–60 |
| Fennel (herb) | Mar 21 | Apr 11 | Apr 18 | Aug 6 | Jun 20 – Aug 29 | 60–90 |
| Feverfew | — | — | May 2 | — | Aug 1 – Oct 17 | 90–120 |
| Garlic Chives | — | — | May 2 | — | Jul 4 – Sep 12 | 60–90 |
| Horehound | — | — | May 2 | — | Jul 18 – Sep 12 | 75–90 |
| Hyssop | — | — | May 2 | — | Jul 11 – Sep 12 | 70–90 |
| Lemon Balm | — | — | May 2 | — | Jul 4 – Aug 22 | 60–70 |
| Lemon Thyme | — | — | May 2 | — | Jul 11 – Sep 12 | 70–90 |
| Lovage | — | — | May 2 | — | Jul 11 – Sep 12 | 70–90 |
| Marjoram | — | — | May 2 | — | Jul 4 – Sep 12 | 60–90 |
| Mint | — | — | May 2 | — | Jul 4 – Sep 12 | 60–90 |
| Oregano | — | — | May 2 | — | Jul 4 – Sep 12 | 60–90 |
| Parsley | Mar 21 | Apr 11 | Apr 18 | Aug 6 | Jun 20 – Aug 22 | 60–80 |
| Rosemary | — | — | May 2 | — | Jul 25 – Dec 12 | 80–180 |
| Rue | — | — | May 2 | — | Jul 11 – Sep 12 | 70–90 |
| Sage | — | — | May 2 | — | Jul 18 – Sep 12 | 75–90 |
| Savory | — | — | May 2 | — | Jun 27 – Aug 22 | 50–70 |
| Sorrel | Mar 21 | Apr 11 | Apr 18 | Aug 6 | May 30 – Aug 1 | 40–60 |
| Tarragon | — | — | May 2 | — | Jul 4 – Sep 12 | 60–90 |
| Thai Basil | Mar 7 | May 2 | May 9 | — | Jul 4 – Sep 5 | 50–75 |
| Thyme | — | — | May 2 | — | Jul 11 – Sep 12 | 70–90 |
| Valerian | — | — | May 2 | — | Sep 5 – Dec 12 | 120–180 |
🌸 Flowers to Grow in Irrigon
53 flowers matched to Zone 7b with planting dates calibrated for Irrigon.
Show all 53 flowers with dates
| Plant | Start Indoors | Direct Sow | Transplant | Fall Plant | Bloom | Days to Maturity |
|---|---|---|---|---|---|---|
| Ageratum | Mar 14 | Apr 25 | Apr 25 | — | Jun 20 – Oct 24 | 60–75 |
| Alliums | — | — | — | Sep 10 | Oct 8 – Oct 29 | 28–42 |
| Anemones | — | — | — | Aug 20 | Sep 3 – Oct 1 | 90–120 |
| Astilbe | Feb 21 | — | May 2 | — | Jul 11 – Sep 5 | 70–100 |
| Bachelor's Button | Mar 14 | Mar 21 | Apr 25 | Aug 20 | Jun 27 – Oct 3 | 60–90 |
| Begonias | Feb 14 | — | Apr 25 | — | Jul 4 – Nov 7 | 70–90 |
| Black-eyed Susan | Feb 21 | Apr 18 | May 2 | — | Jul 11 – Nov 21 | 60–80 |
| Bleeding Hearts | Feb 21 | — | May 2 | — | Jun 20 – Jul 25 | 60–90 |
| Calendula | Mar 14 | Mar 21 | Apr 25 | Aug 20 | Jun 13 – Oct 10 | 50–70 |
| California Poppy | — | Mar 28 | — | Aug 20 | Jun 6 – Aug 29 | 60–90 |
| Celosia | Mar 28 | Apr 25 | Apr 25 | — | Jun 27 – Nov 7 | 60–90 |
| Columbine | Feb 28 | May 2 | May 2 | — | Jun 20 – Jul 25 | 70–100 |
| Coreopsis | Feb 21 | Apr 25 | May 2 | — | Jul 4 – Nov 21 | 60–80 |
| Cosmos | Mar 28 | Apr 18 | Apr 18 | — | Jun 27 – Oct 31 | 60–90 |
| Crocus | — | — | — | Sep 10 | Aug 6 – Aug 27 | 10–20 |
| Daffodils | — | — | — | Sep 10 | Aug 13 – Sep 3 | 20–40 |
| Dahlias | Apr 4 | May 2 | May 2 | — | Jul 11 – Nov 28 | 70–120 |
| Daylily | Feb 21 | — | May 2 | — | Jul 11 – Nov 21 | 60–90 |
| Dianthus | Feb 28 | Mar 21 | Mar 28 | — | May 16 – Aug 8 | 60–80 |
| Echinacea (Purple Coneflower) | Feb 21 | May 2 | May 2 | — | Jul 18 – Nov 21 | 70–90 |
| Foxglove | Feb 28 | May 2 | May 2 | — | Jun 20 – Jul 25 | 80–120 |
| Gaillardia (Blanket Flower) | Mar 7 | Apr 25 | Apr 25 | — | Jul 4 – Dec 5 | 70–100 |
| Geraniums | Feb 14 | — | Apr 25 | — | Jul 4 – Nov 7 | 70–100 |
| Gladiolus | — | Apr 25 | Apr 25 | — | Jul 4 – Nov 21 | 70–100 |
| Hostas | Feb 14 | — | May 2 | — | Jul 11 – Nov 14 | 60–90 |
| Hyacinths | — | — | — | Sep 10 | Sep 3 – Sep 24 | 14–28 |
| Hydrangeas | Feb 14 | — | Apr 25 | — | Jul 4 – Oct 31 | 90–150 |
| Impatiens | Feb 28 | — | Apr 25 | — | Jul 4 – Nov 7 | 60–75 |
| Irises | — | Division | May 2 | — | Jun 20 – Jul 25 | 60–100 |
| Larkspur | — | Mar 28 | — | Aug 6 | Jun 6 – Aug 29 | 60–90 |
| Lavender | Feb 21 | — | May 2 | — | Jul 11 – Oct 3 | 90–120 |
| Lilies | — | Division | Apr 25 | — | Jul 4 – Oct 24 | 70–120 |
| Lobelia | Feb 21 | — | Mar 28 | — | May 23 – Aug 1 | 70–80 |
| Lupine | Feb 28 | May 2 | May 2 | — | Jun 20 – Jul 25 | 75–100 |
| Marigolds | Mar 14 | Apr 25 | Apr 25 | — | Jun 20 – Oct 10 | 50–70 |
| Nasturtium | Mar 28 | Apr 25 | Apr 25 | — | Jun 20 – Nov 7 | 55–65 |
| Pansy | Feb 14 | — | Apr 18 | Aug 6 | Jun 13 – Sep 5 | 70–90 |
| Peonies | — | Division | May 2 | — | Jun 27 – Jul 25 | 90–120 |
| Petunia | Feb 28 | — | Apr 25 | — | Jul 4 – Oct 31 | 70–90 |
| Phlox | Feb 21 | May 2 | May 2 | — | Jul 11 – Oct 3 | 80–110 |
| Portulaca | Mar 28 | Apr 25 | Apr 25 | — | Jun 13 – Oct 24 | 50–70 |
| Ranunculus | — | — | — | Aug 20 | Sep 10 – Oct 8 | 90–120 |
| Roses | Feb 14 | — | Apr 25 | — | Jul 4 – Nov 14 | 90–180 |
| Salvia | Feb 28 | — | Apr 25 | — | Jul 4 – Nov 7 | 70–90 |
| Sedum (Stonecrop) | Feb 21 | — | May 2 | — | Aug 22 – Nov 14 | 60–90 |
| Snapdragon | Feb 14 | Mar 28 | Apr 18 | Aug 20 | Jun 27 – Oct 3 | 70–100 |
| Sunflower | Apr 4 | Apr 25 | Apr 25 | — | Jul 18 – Nov 7 | 70–100 |
| Sweet Alyssum | Mar 14 | Mar 28 | Apr 25 | Sep 3 | Jun 6 – Sep 12 | 45–60 |
| Sweet Pea | — | — | — | Aug 20 | Oct 29 – Jan 21 | 65–85 |
| Tulips | — | — | — | Sep 10 | Aug 27 – Sep 17 | 15–30 |
| Vinca (Annual) | Feb 14 | — | Apr 25 | — | Jul 4 – Nov 7 | 70–90 |
| Yarrow | Feb 21 | Apr 18 | May 2 | — | Jul 4 – Nov 21 | 60–90 |
| Zinnia | Mar 28 | Apr 25 | Apr 25 | — | Jul 4 – Nov 7 | 60–70 |
Monthly Planting Guide for Irrigon
ZIP Codes in Irrigon
Click any ZIP to see its specific frost, soil, and climate measurements (some ZIPs differ noticeably from the town aggregate):