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When to plant Crocus in Cascade, MO

In Zone 7a (Cascade), direct-sow Crocus between mid-spring and late spring for spring, after the April 6 last-frost mark. A second sowing from September 27 to October 11 extends the harvest into fall.

When to Plant Crocus in Cascade, MO

Wayne County, Missouri Zone 7a June

What to do in June

Each item below is timed to Wayne County, Missouri's frost dates and soil temperatures. Skip nothing, stress about nothing.

Avg. last frost April 6
Avg. first frost November 1
Soil temp (4") 75°F
Watering Low
Pest pressure High
Daylight 14.5 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.

Cascade, Missouri is in USDA Zone 7a. The average last spring frost is April 6 and the first fall frost is November 1, giving you a growing season of approximately 209 days.

At an elevation of 1,103 feet, Wayne County receives approximately 36.8 inches of rainfall annually with predominantly silt loam soil. Summer highs average 86°F, providing good warmth for Crocus during the growing season.

Bulb Blooms in Spring Pollinator-friendly Fragrant
Cascade, MO (Zone 7a) Long season
209 days
Last Spring Frost April 6
209 growing days
First Fall Frost November 1

Cascade Soil Profile

Soil Type

Silt Loam

Soil pH

5.7-7

Drainage

Well Drained

Crocus Planting Risk Windows

Early Start (70% safe) ✓ Fits season (228 days to spare)
Transplant: Mar 27 🌸 Bloom: Feb 20 – Mar 13
Recommended (50%) ✓ Fits season (223 days to spare)
Transplant: Apr 6 🌸 Bloom: Mar 2 – Mar 23
Safe Start (90%) ✓ Fits season (227 days to spare)
Transplant: Apr 22 🌸 Bloom: Mar 18 – Apr 8

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 Cascade

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

Soil pH

Your soil pH (5.7–7.0) overlaps with Crocus's range (6.0–7.0), though not a perfect match.

Soil Texture

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

Drainage

Crocus prefers dry conditions but your soil drains poorly. Use raised beds or mounded rows to prevent root rot.

Organic Matter

Organic matter is moderate (3.0%). 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 209-day season

Sow every 1.1 weeks. Last sowing by Oct 12 to harvest before frost.

For a dedicated fall crop, sow by Sep 27.

Crocus Water Budget

Plant needs
0.5″/week
Rainfall provides
0.7″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft

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 1.5" 0" ❄️ Dormant
Feb 1.6" 0" ❄️ Dormant
Mar 2.7" 0" ❄️ Dormant
Apr 2.2" 3.7" 0" ✅ Rainfall sufficient
May 2.2" 4.4" 0" ✅ Rainfall sufficient
Jun 2.2" 4.7" 0" ✅ Rainfall sufficient
Jul 2.2" 4.3" 0" ✅ Rainfall sufficient
Aug 2.2" 3.3" 0" ✅ Rainfall sufficient
Sep 2.2" 3.3" 0" ✅ Rainfall sufficient
Oct 2.2" 2.7" 0" ✅ Rainfall sufficient
Nov 2.2" 2.5" 0" ✅ Rainfall sufficient
Dec 2" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Nov in Wayne 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 ~218 GDD — county provides 3,030 GDD Excellent fit

Crocus Planting Timeline — Cascade, MO

Crocus Planting Calendar

Activity When Date Range
Bloom August 23 Aug 23 – Sep 13
Fall Sowing September 27 Sep 27 – Oct 11

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.5"/week · Natural rainfall sufficient

📅 Days to Maturity

10–20 days

🧪 Soil pH

Needs 6–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 7a

📆 Growing Season

209 days in Wayne County

Growing Tips for Crocus in Cascade

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

Your generous 209.0-day season in Wayne County allows multiple plantings of Crocus. Sow every 5.0 days for continuous harvest.

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 →

When should I plant Crocus in Cascade, MO?

In Cascade, MO, plant Crocus after the last frost (around April 6) and before the first frost (around November 1). Best results when soil holds above 50°F.

What growing zone is Cascade, MO for Crocus?

Cascade sits in USDA Zone 7a. Crocus grows reliably in zones 3a through 8b, so it's a good fit here.

Can Crocus grow in Cascade's climate?

Yes — Crocus grows well in Cascade's temperate climate. Cascade averages a 209-day frost-free season, with last frost around April 6 and first frost around November 1.

🌱

Your Wayne County Garden Planner — Free

A 22-page printable planner built for Wayne County (Zone 7a). 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 Wayne County, MO. Local conditions may vary. Last updated: June 2026.