When to plant Crocus in DeKalb County, MO
Plant Crocus in DeKalb County, when soil hits 50°F — usually mid-spring. Continue planting through late spring for the spring crop. A second sowing from September 6 to September 20 extends the harvest into fall.
When to Plant Crocus in DeKalb County, MO
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.
DeKalb County, Missouri is in USDA Zone 6a. The average last spring frost is April 14 and the first fall frost is October 18, giving you a growing season of approximately 187 days.
At an elevation of 917 feet, DeKalb County receives approximately 39 inches of rainfall annually with predominantly silt loam soil. Summer highs average 87°F, providing good warmth for Crocus during the growing season.
DeKalb County Soil Profile
Soil Type
Silt Loam
Soil pH
5.5-7.1
Drainage
Well Drained
Monthly Watering Guide for Crocus
Crocus needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.
| Month | Crocus Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 1.6" | 0" | ❄️ Dormant |
| Feb | — | 1.6" | 0" | ❄️ Dormant |
| Mar | — | 2.9" | 0" | ❄️ Dormant |
| Apr | 4.3" | 3.6" | 0.7" | 💧 Light watering |
| May | 4.3" | 3.9" | 0.4" | 💧 Light watering |
| Jun | 4.3" | 4.9" | 0" | ✅ Rainfall sufficient |
| Jul | 4.3" | 4.9" | 0" | ✅ Rainfall sufficient |
| Aug | 4.3" | 4" | 0.3" | 💧 Light watering |
| Sep | 4.3" | 3.6" | 0.7" | 💧 Light watering |
| Oct | 4.3" | 3.1" | 1.2" | 💧 Light watering |
| Nov | — | 2.6" | 0" | ❄️ Dormant |
| Dec | — | 2.2" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Apr–Oct in DeKalb County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Crocus Planting Timeline — DeKalb County, MO
Crocus Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Bloom | July 26 | Jul 26 – Aug 16 |
| Fall Sowing | September 6 | Sep 6 – Sep 20 |
Plant 4" deep · 3" apart · Rows 4" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | — |
| April | — |
| May | — |
| June | — |
| July | Bloom |
| August | Bloom |
| September | Fall Sowing |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
Low — drought tolerant
📅 Days to Maturity
10–20 days
🧪 Soil pH
Needs 6–7 · Your soil: N/A
🗺️ USDA Zone
Zone 6a
📆 Growing Season
187 days in DeKalb County
Growing Tips for DeKalb County
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 →
Crocus in Other Locations
Frequently Asked Questions
When should I plant Crocus in DeKalb County, MO?
DeKalb County is in Zone 6a with an average last frost of April 14. Plan your Crocus planting based on this frost date — see the calendar above for exact timing.
What planting zone is DeKalb County, MO?
DeKalb County, Missouri is in USDA Hardiness Zone 6a. The average last spring frost is April 14 and first fall frost is October 18.
When should I plant Crocus in DeKalb County, MO?
In DeKalb County, MO, plant Crocus after the last frost (around April 14) and before the first frost (around October 18). Best results when soil holds above 50°F.
What growing zone is DeKalb County, MO for Crocus?
DeKalb County sits in USDA Zone 6a. Crocus grows reliably in zones 3a through 8b, so it's a good fit here.
Can Crocus grow in DeKalb County's climate?
Yes — Crocus grows well in DeKalb County's temperate climate. DeKalb County averages a 187-day frost-free season, with last frost around April 14 and first frost around October 18.
Your DeKalb County Garden Planner — Free
A 22-page printable planner built for DeKalb County (Zone 6a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.