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When to Plant Crocus in Wagoner County, OK

Wagoner County, Oklahoma Zone 7b June

June in the garden — Wagoner County, Oklahoma

We've pulled the most time-sensitive tasks for Wagoner County, Oklahoma this June and put them front and centre. Tackle them in order.

Avg. last frost April 6
Avg. first frost October 29
Soil temp (4") 78°F
Watering Moderate
Pest pressure High
Daylight 14.4 hrs

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Crocuses (Crocus spp.) are the heralds of spring — small, gem-like blooms that push up through frozen ground or even snow, often weeks before any other flower. Their compact corms naturalize readily in lawns, rock gardens, and borders, creating drifts of purple, white, and yellow that expand year after year. Bees prize early crocus as one of their first nectar and pollen sources of the season. The saffron crocus (C. sativus) blooms in fall and yields the world's most expensive spice.

Wagoner County, Oklahoma is in USDA Zone 7b. The average last spring frost is April 6 and the first fall frost is October 29, giving you a growing season of approximately 206 days.

At an elevation of 640 feet, Wagoner County receives approximately 22 inches of rainfall annually with predominantly loam soil. Summer highs average 89°F, providing good warmth for Crocus during the growing season.

Bulb Blooms in Spring Pollinator-friendly Fragrant
Wagoner County, OK (Zone 7b) Long season
206 days
Last Spring Frost April 6
206 growing days
First Fall Frost October 29
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Wagoner County Soil Profile

Soil Type

Loam

Soil pH

6.2-7.3

Drainage

Well Drained

Crocus Planting Risk Windows

Early Start (70% safe) ✓ Fits season (223 days to spare)
Transplant: Mar 28 🌸 Bloom: Feb 21 – Mar 14
Recommended (50%) ✓ Fits season (220 days to spare)
Transplant: Apr 6 🌸 Bloom: Mar 2 – Mar 23
Safe Start (90%) ✓ Fits season (232 days to spare)
Transplant: Apr 19 🌸 Bloom: Mar 15 – Apr 5

Percentages indicate frost risk at transplant. The 70% safe window means there is a 30% chance of frost after transplant — suitable for cold-hardy crops or gardeners with frost protection. The 90% safe window is best for tender plants.

Soil Compatibility in Wagoner County

How your county's soil matches Crocus's growing requirements.

Soil pH

Your soil pH (6.2–7.3) overlaps with Crocus's range (6.0–7.0), though not a perfect match.

Soil Texture

The loam soil in Wagoner County is excellent for Crocus — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (3.2%). Annual compost additions will help Crocus.

How to Plant Crocus

4"
Planting Depth
3"
Between Plants
4"
Between Rows

Fall planting: Sow 5 weeks before your first frost date for a fall harvest.

Succession Planting Crocus

25
successive plantings in your 206-day season

Sow every 1.1 weeks. Last sowing by Oct 09 to harvest before frost.

For a dedicated fall crop, sow by Sep 24.

Crocus Water Budget

Plant needs
0.5″/week
Rainfall provides
0.5″/week
You supply
0.1″/week
Watering frequency Only during dry spells
Season total 113 gal / 100 sq ft
Drought risk

Water stress score is 6/10 — consider drought-tolerant varieties and mulching

Monthly Watering Guide for Crocus

Crocus needs approximately 0.5 inches of water per week (2.2" per month). Here's how your county's rainfall compares month by month.

Month Crocus Needs Rainfall You Supplement Action
Jan 0.5" 0" ❄️ Dormant
Feb 0.9" 0" ❄️ Dormant
Mar 1.5" 0" ❄️ Dormant
Apr 2.2" 2.7" 0" ✅ Rainfall sufficient
May 2.2" 3.2" 0" ✅ Rainfall sufficient
Jun 2.2" 3.6" 0" ✅ Rainfall sufficient
Jul 2.2" 2.5" 0" ✅ Rainfall sufficient
Aug 2.2" 2.3" 0" ✅ Rainfall sufficient
Sep 2.2" 1.9" 0.3" 💧 Light watering
Oct 2.2" 1.6" 0.6" 💧 Light watering
Nov 0.7" 0" ❄️ Dormant
Dec 0.6" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Oct in Wagoner County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Crocus Heat Requirements (GDD)

What are Growing Degree Days (GDD)?

Growing Degree Days measure the total warmth your plants receive during the growing season. Think of it as a "heat bank" — every day above 50°F deposits warmth that helps your plants grow.

Each plant needs a certain amount of accumulated heat to mature. If your county provides more GDD than the plant needs, it's a great fit. If it's close, you may want to choose faster-maturing varieties or start seeds indoors to get a head start.

Crocus needs ~251 GDD — county provides 3,450 GDD Excellent fit

Crocus Planting Timeline — Wagoner County, OK

Crocus Planting Calendar

Activity When Date Range
Bloom August 20 Aug 20 – Sep 10
Fall Sowing September 24 Sep 24 – Oct 8

Plant 4" deep · 3" apart · Rows 4" apart

Month-by-Month Timeline

MonthActivities
January
February
March
April
May
June
July
August Bloom
September Fall Sowing Bloom
October Fall Sowing
November
December
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Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.5"/week · Only during dry spells

📅 Days to Maturity

10–20 days

🧪 Soil pH

Needs 6–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 7b

📆 Growing Season

206 days in Wagoner County

Growing Tips for Crocus in Wagoner County

Direct sow Crocus outdoors after April 06 in Wagoner County when soil has warmed and frost danger has passed.

Your generous 206.0-day season in Wagoner County allows multiple plantings of Crocus. Sow every 5.0 days for continuous harvest.

Wagoner County receives only 22" of rain annually. Crocus needs consistent moisture — install drip irrigation or water deeply 2-3 times per week.

General growing tips

Plant corms 3–4 inches deep and 2–3 inches apart in fall, when soil temperature drops below 60°F. Mass plantings (at least 25 corms per cluster) create the most visual impact. Plant in well-drained soil — corms rot in standing water. Crocus naturalize well under deciduous trees; the tree leafs out after crocus dormancy begins, so light competition is minimal. Squirrels and chipmunks dig corms — plant deeper (4 inches) or use wire mesh baskets in high-predation areas. Allow foliage to die back naturally before mowing lawns. In zones 8a–8b, plant in December with pre-chilled corms for best results.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Crocus in Wagoner County, OK?

Wagoner County is in Zone 7b with an average last frost of April 6. Plan your Crocus planting based on this frost date — see the calendar above for exact timing.

What planting zone is Wagoner County, OK?

Wagoner County, Oklahoma is in USDA Hardiness Zone 7b. The average last spring frost is April 6 and first fall frost is October 29.

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Your Wagoner County Garden Planner — Free

A 22-page printable planner built for Wagoner County (Zone 7b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

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Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Wagoner County, OK. Local conditions may vary. Last updated: June 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.