Devils Tower, WY — Planting Guide for June
Free PDF, personalized for your town's frost dates & climate. Drop your email — we'll send the link.
What to do in June
If you only do a handful of things in the garden this June, make it these. They're sequenced around your zone's frost timing.
-
Harden off and plant basil, cucumber, and peppers
Plant tomatoes deep — bury the stem up to the first true leaves to grow extra roots. Everything else goes in at the same depth it grew in the tray.
-
Start cucumber, kale, and lettuce under lights
Starting these indoors now means sturdy transplants ready the moment your soil warms up.
-
Bring in the lettuce, radish, and arugula
This is the payoff month. Bring a basket, bring a friend, and get into the beds.
Coming up in July — start thinking about
- Starting indoors: basil, peppers, and pole beans
- First harvests: basil, carrots, and cucumber
- Fall sowing: carrots, kale, and lettuce
Devils Tower sits in Zone 4b — a short, intense growing season. Your last spring frost lands around May 14 and the first fall frost arrives by October 1, giving you roughly 140 frost-free days. Start warm-season crops indoors weeks before the calendar tells you to, prioritize cold-hardy varieties, and use row covers, cold frames, or low tunnels to stretch fall harvests deep into autumn. Brassicas, root crops, and short-season tomatoes are your reliable winners.
Soils trend Loam — the gold standard for vegetables. Add 2–3" of compost annually to maintain it and you'll outgrow most of your neighbors.
Devils Tower averages 30.2 drought weeks per year (US Drought Monitor, 2000–present, trend improving). Treat irrigation as a year-round system, not a summer add-on.
🌡️ USDA Zone
4b (-25°F to -20°F min)
❄️ Avg. Last Frost
May 14
🍂 Avg. First Frost
October 1
📅 Growing Season
140 days
🌧️ Climate
Moderate 24.4" annual
💨 Wind
Unknown 0.0 mph avg
🥶 Frost Tier
Regular 0% frost-free years
🏜️ Drought
30.2 wk/yr trend improving
📍 ZIP Codes
1 ZIP
Monthly Watering Calendar for Devils Tower
When you'll need to water your garden — based on average monthly rainfall vs. the ~1 inch/week most gardens need.
For new gardeners: Mulch reduces watering needs 30-50% by cutting evaporation. Devils Tower's 24" annual rainfall might be enough for vegetables in some months and not in others — a 2-3" mulch layer evens the swing.
View detailed monthly data
| Month | Avg Rainfall | Rainy Days | Extra Water Needed | Watering Effort |
|---|---|---|---|---|
| Jan | 1.6 in | 6 days | — | None |
| Feb | 1.5 in | 5 days | — | None |
| Mar | 1.9 in | 7 days | — | None |
| Apr | 2.9 in | 7 days | 1.4 in | Moderate |
| May | 3.1 in | 8 days | 1.2 in | Moderate |
| Jun | 1.6 in | 5 days | 2.7 in | High |
| Jul | 2.1 in | 6 days | 2.2 in | High |
| Aug | 2.5 in | 7 days | 1.8 in | High |
| Sep | 2.2 in | 5 days | 2.1 in | High |
| Oct | 2.3 in | 5 days | 2 in | High |
| Nov | 1.6 in | 6 days | — | None |
| Dec | 1.5 in | 6 days | — | None |
Annual total: 24.8 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.
Devils Tower Soil Profile
Soil Type
Loam
Soil pH
6.3-7.9
Drainage
Well Drained
Frost Risk Probability
Based on 30 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 29 | Oct 15 | 139 days |
| Cautious | May 19 | Oct 4 | 138 days |
| Average year | May 14 | Oct 1 | 140 days |
| Optimistic | May 9 | Sep 19 | 133 days |
| Aggressive (risky) | Apr 29 | Sep 9 | 133 days |
Not very — frost dates can vary by ±30 days year-to-year. Use the "Conservative" row in the table below, and keep row covers handy for surprise late frosts.
Yes — growing seasons are getting longer here (about 4.9 days per decade). Spring is arriving earlier than it used to. Good news for gardeners.
Gardening Difficulty Score
Crook County has challenging growing conditions. Season extension and careful variety selection are essential.
Local Gardening Help in Crook 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 Crook County's climate and soil.
County Extension Office
Crook County University of Wyoming Extension Extension Office
Phone: 307-766-5124
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 Crook County
Finding local nurseries & garden centers in Crook County
Why Buy Local
Local nurseries carry plants that are proven to grow in your area. Staff can give you advice specific to Crook 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 Crook County WY" or "garden center Crook 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 Crook County WY" or check your extension office and local parks department. Facebook groups like "Crook County Gardeners" or "Wyoming 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 Devils Tower
Monthly daylight hours and peak sun — critical for onion varieties, photoperiod-sensitive plants, and solar garden planning.
Why it matters: Plants use day length as their seasonal clock. Some crops flower when days lengthen (most flowers), some when days shorten (chrysanthemums, soybeans). Devils Tower's curve is the timing layer beneath everything you grow.
Longest Day
15.4 hours
Summer solstice daylight
Shortest Day
8.6 hours
Winter solstice daylight
Peak Sun Hours
10.9 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 | 9 hr | 4.8 hr | Short day |
| February | 10.2 hr | 5.8 hr | Short day |
| March | 11.6 hr | 7 hr | Short day |
| April | 13.3 hr | 7.6 hr | Neutral |
| May | 14.6 hr | 8.7 hr | Long day |
| June | 15.4 hr | 10.9 hr | Long day |
| July | 15 hr | 10.8 hr | Long day |
| August | 13.9 hr | 9.4 hr | Neutral |
| September | 12.3 hr | 8.8 hr | Neutral |
| October | 10.7 hr | 7.2 hr | Short day |
| November | 9.3 hr | 5.2 hr | Short day |
| December | 8.6 hr | 4.8 hr | Short day |
Peak sun hours factor in typical cloud cover — use these for solar panel and shade-planning calculations.
Soil Temperature & Composting in Devils Tower
Monthly soil temps tell you when to plant warm-season crops, and when your compost pile is actively working.
The practical takeaway: Lettuce germinates at 35°F. Beans want 60°F. Tomatoes 65°F+. Soil temp, not air temp, is what plants feel. Devils Tower's monthly curve tells you when each crop actually has the conditions to take off.
Plant Warm Crops When
Soil reaches 60°F+
Soil rarely reaches 60°F — use black plastic mulch to warm soil.
Best Month to Compost
Apr
Microbial activity peaks when soil is warm.
Active Composting
0 months
Short season — insulate pile or use indoor vermicomposting.
View detailed monthly data
| Month | Soil 4" Deep | Soil 8" Deep | Compost Activity | Time to Finish |
|---|---|---|---|---|
| Jan | -11°F | -2°F | ❄️ Dormant | ~36 weeks |
| Feb | -8°F | -3°F | ❄️ Dormant | ~36 weeks |
| Mar | -0°F | 4°F | ❄️ Dormant | ~36 weeks |
| Apr | 17°F | 15°F | ❄️ Dormant | ~36 weeks |
| May | 31°F | 27°F | ❄️ Dormant | ~36 weeks |
| Jun | 39°F | 35°F | ❄️ Dormant | ~36 weeks |
| Jul | 47°F | 43°F | 🐢 Slow | ~24 weeks |
| Aug | 48°F | 44°F | 🐢 Slow | ~24 weeks |
| Sep | 42°F | 39°F | 🐢 Slow | ~24 weeks |
| Oct | 28°F | 30°F | ❄️ Dormant | ~36 weeks |
| Nov | 12°F | 20°F | ❄️ Dormant | ~36 weeks |
| Dec | -2°F | 6°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 Devils Tower
Computed from local climate patterns — warmer, humid conditions increase pest generations and fungal disease risk.
What this means for you: Warm humid regions cycle through pest generations 3-5x faster than cold dry regions. Devils Tower's pest score is your early-warning system: high score means commit to disease-resistant varieties and accept some crop loss to bugs.
Insect Pest Pressure
Moderate — common pests appear but manageable with monitoring.
Disease Risk
Low disease risk — dry conditions reduce fungal problems.
Seasonal Risk
View 5 common pests in your area
| Pest | Risk Level | Peak Months |
|---|---|---|
| Aphids | Moderate | May, Jun, Jul, Aug |
| Cabbage worms | Low | Jun, Jul, Aug |
| Colorado potato beetle | Low | Jun, Jul |
| Flea beetles | Low | May, Jun, Jul |
| Slugs | Moderate | May, Jun, Jul, Aug, Sep |
Organic pest management tips
- Maintain healthy soil with regular compost additions to build natural pest resistance
- Practice crop rotation annually to break pest cycles
- Encourage beneficial insects with flowering herbs like dill, fennel, and yarrow
Cover Crops for Devils Tower
Cover crops protect bare soil, fix nitrogen, suppress weeds, and improve soil structure — with planting dates calibrated for your area.
The practical takeaway: A fall-planted cover crop in Devils Tower 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 (2 options) — Build soil before the main growing season
| Crop | Plant By | Terminate | N-Fixing | Soil Benefit |
|---|---|---|---|---|
| Buckwheat | May 19 | Jul 30 | — | Rapid growth, attracts pollinators, suppresses weeds |
| White clover | Apr 15 | Jul 30 | ✓ 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 | Jun 14 | Sep 17 | — | Deep roots break compaction, attract pollinators and beneficial insects |
Fall Cover Crops (5 options) — Plant after harvest to protect soil over winter
| Crop | Plant By | Terminate | N-Fixing | Soil Benefit |
|---|---|---|---|---|
| Daikon radish | Aug 5 | Apr 23 | — | Deep taproot breaks compaction, excellent for clay soils |
| Hairy vetch | Jul 10 | Apr 23 | ✓ Yes | Excellent nitrogen fixer, good for depleted soils |
| Oats | Aug 18 | Apr 30 | — | Quick biomass, winterkills in cold zones — no spring tillage needed |
| Winter rye | Jun 30 | Apr 23 | — | Suppresses weeds, prevents erosion, breaks up compacted soil |
| Winter wheat | Jul 9 | Apr 30 | — | Erosion control, weed suppression, good biomass |
Wind & Microclimate in Devils Tower
For new gardeners: 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. Devils Tower sees 0.0 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: 14 mph Summer: 11 mph
Fall: 12 mph Winter: 14 mph
Prevailing wind: W. Windy area — plant a windbreak hedge on the W side of your garden.
Windbreak Benefit
6.6/10
Moderately beneficial — a simple fence or trellis can protect delicate crops from wind stress.
Frost Pocket Risk
High
Hilly terrain with 1,475 ft of elevation range — cold air pools in low spots. Avoid planting frost-sensitive crops in valleys.
Rainwater Harvesting in Devils Tower
How much water you can collect, when to collect it, and what size system you need for your garden.
The practical takeaway: A gravity-fed rain barrel ($75) is the easy entry. A larger cistern ($500-1500) covers a whole growing season. Devils Tower's 24" annual rainfall determines whether the larger system is overkill or essential.
Annual Collection
12,360 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 1,500 gal tank.
Legal Status
Unrestricted
Rainwater harvesting is fully legal in your state with no restrictions.
Best Collection Months
Apr, May, Aug, Oct
Highest rainfall months — your barrels will fill up quickly during these months.
Months to Draw From Storage
Feb, Nov, Dec
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 24.8 inches of rain per year
- A 1,000 sq ft roof can collect roughly 12,360 gallons annually
- Rainwater harvesting is fully legal in your state
- Stock up on stored water before your dry season (Feb, Nov, Dec)
- Use a first-flush diverter to keep roof debris out of your collection
🥬 Vegetables to Grow in Devils Tower
95 vegetables matched to Zone 4b with planting dates calibrated for Devils Tower.
Show all 95 vegetables with dates
| Plant | Start Indoors | Direct Sow | Transplant | Fall Plant | Harvest | Days to Maturity |
|---|---|---|---|---|---|---|
| Acorn Squash | Apr 2 | May 28 | Jun 4 | — | Aug 27 – Oct 1 | 80–100 |
| Amaranth | Mar 12 | May 28 | Jun 4 | — | Sep 3 – Oct 22 | 90–120 |
| Arugula | Apr 2 | May 7 | May 14 | Jul 9 | Jun 18 – Aug 20 | 30–50 |
| Asparagus | — | — | May 28 | — | — | 730–1095 |
| Beets | — | May 7 | — | Jul 9 | Jul 2 – Jul 30 | 50–70 |
| Belgian Endive | Apr 2 | May 7 | May 14 | Jul 9 | Sep 3 – Oct 8 | 110–150 |
| Black Beans | — | May 28 | — | — | Aug 27 – Oct 15 | 90–120 |
| Bok Choy | Apr 2 | May 7 | May 14 | Jul 9 | Jun 25 – Jul 30 | 40–60 |
| Broccoli | Apr 2 | May 7 | May 14 | Jul 9 | Jul 16 – Aug 27 | 60–90 |
| Broccoli Rabe | Apr 2 | May 7 | May 14 | Jul 9 | Jun 25 – Jul 30 | 40–60 |
| Brussels Sprouts | Apr 2 | May 7 | May 14 | Jul 9 | Aug 13 – Oct 8 | 90–130 |
| Butternut Squash | Apr 2 | May 28 | Jun 4 | — | Sep 3 – Oct 8 | 85–110 |
| Cabbage | Apr 2 | May 7 | May 14 | Jul 9 | Jul 16 – Sep 10 | 60–100 |
| Carrots | — | May 7 | — | Jul 9 | Jul 9 – Aug 13 | 60–80 |
| Cauliflower | Apr 2 | May 7 | May 14 | Jul 9 | Jul 9 – Sep 10 | 55–100 |
| Celeriac | Apr 2 | May 7 | May 14 | Jul 9 | Aug 27 – Oct 1 | 100–120 |
| Celery | Apr 2 | May 7 | May 14 | Jul 9 | Aug 6 – Oct 1 | 80–120 |
| Celtuce | Apr 2 | May 7 | May 14 | Jul 9 | Jul 16 – Aug 27 | 60–90 |
| Chard | Apr 2 | May 7 | May 14 | Jul 9 | Jul 9 – Aug 27 | 50–60 |
| Chickpeas | Apr 2 | May 7 | May 14 | Jul 9 | Aug 6 – Sep 17 | 80–110 |
| Chicory | Apr 2 | May 7 | May 14 | Jul 9 | Jul 16 – Aug 27 | 60–85 |
| Chinese Cabbage | Apr 2 | May 7 | May 14 | Jul 9 | Jul 9 – Aug 6 | 50–70 |
| Christmas Lima Beans | Mar 12 | May 28 | Jun 4 | — | Aug 27 – Oct 1 | 80–100 |
| Collard Greens | Apr 2 | May 7 | May 14 | Jul 9 | Jul 9 – Sep 10 | 55–75 |
| Corn | — | May 28 | — | — | Jul 30 – Sep 24 | 60–100 |
| Cress | Apr 2 | May 7 | May 14 | Jul 9 | May 28 – Jun 18 | 14–21 |
| Crookneck Squash | Apr 2 | May 28 | Jun 4 | — | Jul 23 – Aug 20 | 45–60 |
| Crosne | — | May 7 | — | Jul 9 | Oct 8 – Oct 1 | 150–200 |
| Cucumber | Apr 2 | May 28 | Jun 4 | — | Jul 30 – Sep 24 | 50–70 |
| Daikon | — | May 7 | — | Jul 9 | Jul 2 – Jul 30 | 50–70 |
| Delicata Squash | Apr 2 | May 28 | Jun 4 | — | Aug 27 – Oct 1 | 80–100 |
| Edamame | — | May 28 | — | — | Aug 13 – Sep 24 | 75–100 |
| Endive | Apr 2 | May 7 | May 14 | Jul 9 | Jul 2 – Aug 6 | 45–65 |
| Escarole | Apr 2 | May 7 | May 14 | Jul 9 | Jul 9 – Aug 6 | 50–70 |
| Fava Beans | Apr 2 | May 7 | May 14 | Jul 9 | Jul 30 – Sep 10 | 75–100 |
| Fennel | Mar 12 | May 28 | Jun 4 | — | Aug 6 – Sep 17 | 60–90 |
| Garlic | — | — | — | Aug 20 | Nov 19 – Jan 14 | 90–240 |
| Green Beans | — | May 28 | — | — | Jul 23 – Sep 17 | 50–65 |
| Horseradish | — | — | May 28 | — | Oct 1 – Oct 22 | 120–180 |
| Hubbard Squash | Apr 2 | May 28 | Jun 4 | — | Sep 17 – Oct 22 | 100–120 |
| Kabocha | Apr 2 | May 28 | Jun 4 | — | Sep 3 – Oct 1 | 85–100 |
| Kai Lan | Apr 2 | May 7 | May 14 | Jul 9 | Jul 2 – Jul 30 | 45–60 |
| Kale | Apr 2 | May 7 | May 14 | Jul 9 | Jul 9 – Sep 3 | 50–70 |
| Kidney Beans | — | May 28 | — | — | Aug 27 – Oct 1 | 85–110 |
| Kohlrabi | Apr 2 | May 7 | May 14 | Jul 9 | Jul 2 – Aug 6 | 45–65 |
| Komatsuna | Apr 2 | May 7 | May 14 | Jul 9 | Jun 18 – Jul 23 | 35–50 |
| Leeks | Apr 2 | May 7 | May 14 | Jul 9 | Aug 13 – Oct 8 | 90–150 |
| Lentils | Apr 2 | May 7 | May 14 | Jul 9 | Aug 6 – Sep 17 | 80–110 |
| Lettuce | Apr 2 | May 7 | May 14 | Jul 9 | Jun 18 – Aug 27 | 30–60 |
| Lima Beans | — | May 28 | — | — | Jul 30 – Sep 10 | 60–90 |
| Mache | Apr 2 | May 7 | May 14 | Jul 9 | Jun 25 – Jul 30 | 40–60 |
| Melon | Apr 2 | May 28 | Jun 4 | — | Aug 13 – Oct 1 | 70–100 |
| Microgreens | Apr 2 | May 7 | May 14 | Jul 9 | May 21 – Jun 18 | 7–21 |
| Mitsuba | Apr 2 | May 7 | May 7 | Jul 9 | Jul 2 – Aug 27 | 50–70 |
| Mizuna | Apr 2 | May 7 | May 14 | Jul 9 | Jun 18 – Jul 16 | 30–45 |
| Mustard Greens | Apr 2 | May 7 | May 14 | Jul 9 | Jun 18 – Aug 20 | 30–50 |
| Napa Cabbage | Apr 2 | May 7 | May 14 | Jul 9 | Jul 9 – Aug 13 | 55–75 |
| Onion | Apr 2 | May 7 | May 14 | Jul 9 | Aug 13 – Oct 1 | 90–120 |
| Pac Choi | Apr 2 | May 7 | May 14 | Jul 9 | Jun 25 – Jul 23 | 40–55 |
| Parsnip | — | May 7 | — | Jul 9 | Aug 20 – Oct 1 | 100–130 |
| Patty Pan Squash | Apr 2 | May 28 | Jun 4 | — | Jul 23 – Aug 20 | 45–60 |
| Peas | Apr 2 | May 7 | May 14 | Jul 9 | Jul 9 – Sep 3 | 55–70 |
| Peppers | Feb 26 | May 28 | Jun 4 | — | Aug 6 – Oct 15 | 60–90 |
| Pole Beans | Mar 12 | May 28 | Jun 4 | — | Jul 30 – Sep 24 | 55–70 |
| Potatoes | Mar 12 | May 28 | Jun 4 | — | Aug 13 – Oct 22 | 70–120 |
| Pumpkin | Apr 2 | May 28 | Jun 4 | — | Sep 3 – Oct 22 | 85–120 |
| Purslane | Apr 2 | May 7 | May 14 | Jul 9 | Jun 25 – Jul 30 | 40–60 |
| Radicchio | Apr 2 | May 7 | May 14 | Jul 9 | Jul 16 – Aug 20 | 60–80 |
| Radish | — | May 7 | — | Jul 9 | Jun 4 – Jun 25 | 22–35 |
| Rhubarb | — | — | Jun 11 | — | — | 365–730 |
| Romanesco | Apr 2 | May 7 | May 14 | Jul 9 | Jul 30 – Sep 10 | 75–100 |
| Rutabaga | — | May 7 | — | Jul 9 | Jul 30 – Sep 3 | 80–100 |
| Salsify | — | May 7 | — | Jul 9 | Aug 20 – Oct 1 | 100–130 |
| Savoy Cabbage | Apr 2 | May 7 | May 14 | Jul 9 | Jul 23 – Sep 17 | 70–110 |
| Scallions | Apr 2 | May 7 | May 14 | Jul 9 | Jul 9 – Aug 6 | 50–70 |
| Scarlet Runner Beans | Mar 12 | May 28 | Jun 4 | — | Aug 6 – Sep 10 | 60–80 |
| Shallot | Apr 2 | May 7 | May 14 | Jul 9 | Aug 13 – Oct 1 | 90–120 |
| Shiso | Mar 19 | May 21 | Jun 4 | — | Jul 30 – Sep 24 | 50–70 |
| Snap Peas | Mar 12 | May 28 | Jun 4 | — | Jul 30 – Sep 24 | 55–70 |
| Snow Peas | Apr 2 | May 7 | May 14 | Jul 9 | Jul 9 – Sep 3 | 50–65 |
| Soybeans | — | May 28 | — | — | Aug 20 – Oct 15 | 80–120 |
| Spaghetti Squash | Apr 2 | May 28 | Jun 4 | — | Sep 3 – Oct 1 | 85–100 |
| Spinach | Apr 2 | May 7 | May 14 | Jul 9 | Jun 18 – Aug 20 | 35–50 |
| Squash (Summer) | Apr 2 | May 28 | Jun 4 | — | Jul 23 – Sep 24 | 45–65 |
| Squash (Winter) | Apr 2 | May 28 | Jun 4 | — | Aug 27 – Oct 22 | 80–120 |
| Sunchoke | — | — | May 28 | — | Sep 17 – Oct 22 | 110–150 |
| Sweet Corn | — | May 28 | — | — | Jul 30 – Sep 10 | 60–90 |
| Tatsoi | Apr 2 | May 7 | May 14 | Jul 9 | Jun 18 – Jul 23 | 35–50 |
| Tomatillo | Mar 12 | May 28 | Jun 4 | — | Aug 6 – Oct 15 | 60–85 |
| Tomatoes | Mar 12 | May 28 | Jun 4 | — | Aug 6 – Oct 15 | 60–85 |
| Turnip | — | May 7 | — | Jul 9 | Jun 18 – Jul 23 | 40–60 |
| Watercress | Apr 2 | May 7 | May 14 | Jul 9 | Jun 25 – Jul 30 | 40–60 |
| Watermelon | Apr 2 | May 28 | Jun 4 | — | Aug 13 – Oct 1 | 70–100 |
| Wax Beans | — | May 28 | — | — | Jul 23 – Sep 17 | 50–65 |
| Zucchini | Apr 2 | May 28 | Jun 4 | — | Jul 23 – Sep 17 | 45–60 |
🍓 Fruits to Grow in Devils Tower
22 fruits matched to Zone 4b with planting dates calibrated for Devils Tower.
Show all 22 fruits with dates
| Plant | Start Indoors | Direct Sow | Transplant | Fall Plant | Harvest | Days to Maturity |
|---|---|---|---|---|---|---|
| Alpine Strawberries | — | — | Jun 11 | — | Sep 10 – Nov 5 | 90–180 |
| Aronia | — | — | Jun 11 | — | — | 730–1095 |
| Blueberries | — | — | Jun 11 | — | — | 730–1095 |
| Cantaloupe | — | — | Jun 11 | — | Aug 20 – Sep 24 | 70–90 |
| Cranberries | — | — | Jun 11 | — | — | 730–1095 |
| Currants | — | — | Jun 11 | — | — | 730–1095 |
| Elderberries | — | — | Jun 11 | — | — | 730–1095 |
| Goji Berries | — | — | Jun 11 | — | — | 730–1095 |
| Gooseberries | — | — | Jun 11 | — | — | 730–1095 |
| Grapes | — | — | Jun 11 | — | — | 730–1095 |
| Ground Cherry | — | — | Jun 11 | — | Aug 20 – Oct 15 | 65–80 |
| Hardy Kiwi | — | — | Jun 11 | — | — | 1095–1825 |
| Haskaps | — | — | Jun 11 | — | — | 730–1095 |
| Honeydew | — | — | Jun 11 | — | Sep 3 – Oct 15 | 80–110 |
| Jostaberry | — | — | Jun 11 | — | — | 730–1095 |
| Lingonberries | — | — | Jun 11 | — | — | 730–1095 |
| Medlar | — | — | Jun 11 | — | — | 1095–1825 |
| Mulberries | — | — | Jun 11 | — | — | 730–1825 |
| Persimmon | — | — | Jun 11 | — | — | 1095–2555 |
| Raspberries | — | — | Jun 11 | — | — | 365–730 |
| Serviceberries | — | — | Jun 11 | — | — | 730–1095 |
| Strawberries | — | — | Jun 11 | — | Sep 10 – Nov 5 | 90–365 |
🌿 Herbs to Grow in Devils Tower
30 herbs matched to Zone 4b with planting dates calibrated for Devils Tower.
Show all 30 herbs with dates
| Plant | Start Indoors | Direct Sow | Transplant | Fall Plant | Harvest | Days to Maturity |
|---|---|---|---|---|---|---|
| Angelica | Apr 2 | May 7 | May 7 | Jul 9 | — | 365–730 |
| Anise | Apr 2 | May 7 | May 7 | Jul 9 | Aug 6 – Oct 1 | 90–120 |
| Basil | Mar 19 | May 21 | Jun 4 | — | Jul 30 – Oct 1 | 50–75 |
| Bee Balm | — | — | May 21 | — | Aug 20 – Oct 15 | 90–120 |
| Borage | Apr 2 | May 7 | May 7 | Jul 9 | Jul 2 – Aug 20 | 50–60 |
| Caraway | Apr 2 | May 7 | May 7 | Jul 9 | — | 365–450 |
| Catnip | — | — | May 21 | — | Jul 23 – Sep 24 | 60–80 |
| Chamomile | Apr 2 | May 7 | May 7 | Jul 9 | Jul 9 – Sep 17 | 60–90 |
| Chervil | Apr 2 | May 7 | May 7 | Jul 9 | Jun 18 – Aug 20 | 40–60 |
| Chives | — | — | May 21 | — | Jul 23 – Oct 1 | 60–90 |
| Cilantro | Apr 2 | May 7 | May 7 | Jul 9 | Jun 18 – Aug 20 | 40–60 |
| Comfrey | — | — | May 21 | — | Jul 23 – Oct 1 | 60–90 |
| Dill | Apr 2 | May 7 | May 7 | Jul 9 | Jun 18 – Aug 20 | 40–60 |
| Fennel (herb) | Apr 2 | May 7 | May 7 | Jul 9 | Jul 9 – Sep 17 | 60–90 |
| Garlic Chives | — | — | May 21 | — | Jul 23 – Oct 1 | 60–90 |
| Horehound | — | — | May 21 | — | Aug 6 – Oct 1 | 75–90 |
| Hyssop | — | — | May 21 | — | Jul 30 – Oct 1 | 70–90 |
| Lemon Balm | — | — | May 21 | — | Jul 23 – Sep 10 | 60–70 |
| Lovage | — | — | May 21 | — | Jul 30 – Oct 1 | 70–90 |
| Mint | — | — | May 21 | — | Jul 23 – Oct 1 | 60–90 |
| Oregano | — | — | May 21 | — | Jul 23 – Oct 1 | 60–90 |
| Parsley | Apr 2 | May 7 | May 7 | Jul 9 | Jul 9 – Sep 10 | 60–80 |
| Rue | — | — | May 21 | — | Jul 30 – Oct 1 | 70–90 |
| Sage | — | — | May 21 | — | Aug 6 – Oct 1 | 75–90 |
| Savory | — | — | May 21 | — | Jul 16 – Sep 10 | 50–70 |
| Sorrel | Apr 2 | May 7 | May 7 | Jul 9 | Jun 18 – Aug 20 | 40–60 |
| Tarragon | — | — | May 21 | — | Jul 23 – Oct 1 | 60–90 |
| Thai Basil | Mar 19 | May 21 | Jun 4 | — | Jul 30 – Oct 1 | 50–75 |
| Thyme | — | — | May 21 | — | Jul 30 – Oct 1 | 70–90 |
| Valerian | — | — | May 21 | — | Sep 24 – Oct 15 | 120–180 |
🌸 Flowers to Grow in Devils Tower
49 flowers matched to Zone 4b with planting dates calibrated for Devils Tower.
Show all 49 flowers with dates
| Plant | Start Indoors | Direct Sow | Transplant | Fall Plant | Bloom | Days to Maturity |
|---|---|---|---|---|---|---|
| Ageratum | Mar 26 | May 21 | May 21 | — | Jul 16 – Oct 1 | 60–75 |
| Alliums | — | — | — | Aug 20 | Sep 24 – Oct 22 | 28–42 |
| Astilbe | Mar 5 | — | May 28 | — | Aug 20 – Oct 15 | 70–100 |
| Bachelor's Button | Mar 26 | Apr 30 | May 14 | — | Jul 16 – Sep 17 | 60–90 |
| Begonias | Feb 26 | — | May 21 | — | Jul 30 – Oct 8 | 70–90 |
| Black-eyed Susan | Mar 5 | May 14 | May 28 | — | Aug 20 – Nov 5 | 60–80 |
| Bleeding Hearts | Mar 5 | — | May 28 | — | Jul 23 – Sep 3 | 60–90 |
| Calendula | Mar 26 | Apr 30 | May 14 | — | Jul 2 – Sep 17 | 50–70 |
| Celosia | Apr 9 | May 28 | May 28 | — | Jul 30 – Oct 15 | 60–90 |
| Columbine | Mar 5 | May 28 | May 28 | — | Jul 23 – Sep 10 | 70–100 |
| Coreopsis | Mar 5 | May 21 | May 28 | — | Aug 13 – Nov 5 | 60–80 |
| Cosmos | Apr 16 | May 21 | May 21 | — | Jul 30 – Oct 22 | 60–90 |
| Crocus | — | — | — | Aug 20 | Jun 25 – Jul 23 | 10–20 |
| Daffodils | — | — | — | Aug 20 | Jul 2 – Jul 30 | 20–40 |
| Dahlias | Apr 16 | May 28 | May 28 | — | Aug 27 – Nov 5 | 70–120 |
| Daylily | Mar 5 | — | May 28 | — | Aug 27 – Nov 5 | 60–90 |
| Dianthus | Mar 12 | Apr 23 | May 7 | — | Jun 25 – Sep 3 | 60–80 |
| Echinacea (Purple Coneflower) | Mar 5 | May 28 | May 28 | — | Aug 27 – Nov 5 | 70–90 |
| Foxglove | Mar 5 | May 28 | May 28 | — | Jul 23 – Sep 3 | 80–120 |
| Gaillardia (Blanket Flower) | Mar 19 | May 28 | May 28 | — | Aug 6 – Nov 12 | 70–100 |
| Geraniums | Feb 26 | — | May 21 | — | Jul 30 – Oct 8 | 70–100 |
| Gladiolus | — | May 21 | May 21 | — | Aug 20 – Oct 29 | 70–100 |
| Hostas | Feb 26 | — | May 28 | — | Aug 27 – Nov 5 | 60–90 |
| Hyacinths | — | — | — | Aug 20 | Jul 23 – Aug 13 | 14–28 |
| Hydrangeas | Feb 26 | — | May 28 | — | Aug 20 – Oct 22 | 90–150 |
| Impatiens | Mar 12 | — | May 28 | — | Aug 13 – Oct 15 | 60–75 |
| Irises | — | Division | May 28 | — | Jul 23 – Aug 27 | 60–100 |
| Larkspur | — | Apr 16 | — | — | Jun 25 – Aug 13 | 60–90 |
| Lilies | — | Division | May 28 | — | Aug 20 – Oct 22 | 70–120 |
| Lobelia | Mar 5 | — | May 14 | — | Jul 9 – Sep 10 | 70–80 |
| Lupine | Mar 5 | May 28 | May 28 | — | Jul 23 – Sep 3 | 75–100 |
| Marigolds | Apr 2 | May 21 | May 21 | — | Jul 16 – Oct 1 | 50–70 |
| Nasturtium | Apr 16 | May 21 | May 21 | — | Jul 16 – Oct 8 | 55–65 |
| Pansy | Feb 26 | — | May 14 | — | Jul 9 – Aug 27 | 70–90 |
| Peonies | — | Division | May 28 | — | Aug 6 – Sep 10 | 90–120 |
| Petunia | Mar 12 | — | May 21 | — | Jul 30 – Oct 15 | 70–90 |
| Phlox | Mar 5 | May 28 | May 28 | — | Aug 20 – Oct 29 | 80–110 |
| Portulaca | Apr 9 | May 28 | May 28 | — | Jul 16 – Oct 1 | 50–70 |
| Roses | Feb 26 | — | May 28 | — | Aug 20 – Nov 5 | 90–180 |
| Salvia | Mar 12 | — | May 21 | — | Jul 30 – Oct 8 | 70–90 |
| Sedum (Stonecrop) | Mar 5 | — | May 28 | — | Oct 1 – Nov 26 | 60–90 |
| Snapdragon | Mar 5 | — | May 14 | — | Jul 23 – Sep 17 | 70–100 |
| Sunflower | Apr 23 | May 21 | May 21 | — | Aug 13 – Oct 15 | 70–100 |
| Sweet Alyssum | Mar 26 | May 7 | May 14 | — | Jun 25 – Aug 27 | 45–60 |
| Sweet Pea | Apr 2 | Apr 9 | May 14 | — | Aug 6 – Sep 24 | 65–85 |
| Tulips | — | — | — | Aug 20 | Jul 16 – Aug 6 | 15–30 |
| Vinca (Annual) | Feb 26 | — | May 28 | — | Aug 6 – Oct 15 | 70–90 |
| Yarrow | Mar 5 | May 14 | May 28 | — | Aug 13 – Nov 5 | 60–90 |
| Zinnia | Apr 16 | May 21 | May 21 | — | Jul 30 – Oct 15 | 60–70 |
Monthly Planting Guide for Devils Tower
ZIP Codes in Devils Tower
Click any ZIP to see its specific frost, soil, and climate measurements (some ZIPs differ noticeably from the town aggregate):
Gardening Guides & Resources
Helpful guides from The Ultimate Homestead to improve your garden in Crook County.
Your Crook County Garden Planner — Free
A 22-page printable planner built for Crook County (Zone 4b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.
The Gardener's Encyclopedia to Companion Planting
The pairings that make vegetables, herbs, and flowers grow better — and the ones that quietly wreck a bed.
- Proven pairings for 200+ vegetables, herbs, flowers, and fruits
- Full seed-starting + planting schedule with timing and spacing
- Bonus: square-foot gardening guide + printable seasonal planners
Seed Saving & Storage Guide
Most saved seeds go bad before next season. This shows exactly when to pick, how to dry, and where to store seeds from 200 plants so yours don't.
- 200 plants, step-by-step: life cycle, pollination type, isolation
- Exact temperature + humidity ranges that keep seeds viable
- Bonus: searchable Google Sheets tracker + custom GPT assistant
Composting Guide for Homesteaders
Turn kitchen scraps and yard waste into compost that actually feeds the garden — instead of a pile that smells, attracts pests, and never breaks down.
- 14 sections on composting methods, soil science, and troubleshooting
- The 7-step hot-compost system from start to finish
- Bonus tools: troubleshooting chart, safety guide, monitoring log