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When to Plant Crocus in Craig County, VA

Craig County, Virginia Zone 7a June

Your June game plan for Craig County, Virginia

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

Avg. last frost April 26
Avg. first frost October 19
Soil temp (4") 74°F
Watering Low
Pest pressure High
Daylight 14.6 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.

Craig County, Virginia is in USDA Zone 7a. The average last spring frost is April 26 and the first fall frost is October 19, giving you a growing season of approximately 176 days.

At an elevation of 460 feet, Craig County receives approximately 43 inches of rainfall annually with predominantly silt loam soil. Summer highs average 85°F, providing good warmth for Crocus during the growing season.

Bulb Blooms in Spring Pollinator-friendly Fragrant
Craig County, VA (Zone 7a) Moderate season
176 days
Last Spring Frost April 26
176 growing days
First Fall Frost October 19

Craig County Soil Profile

Soil Type

Silt Loam

Soil pH

5.5-6.8

Drainage

Well Drained

Crocus Planting Risk Windows

Early Start (70% safe) ✓ Fits season (193 days to spare)
Transplant: Apr 20 🌸 Bloom: Mar 16 – Apr 6
Recommended (50%) ✓ Fits season (190 days to spare)
Transplant: Apr 26 🌸 Bloom: Mar 22 – Apr 12
Safe Start (90%) ✓ Fits season (185 days to spare)
Transplant: May 15 🌸 Bloom: Apr 10 – May 1

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 Craig County

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

Soil pH

Your soil pH (5.5–6.8) overlaps with Crocus's range (6.0–7.0), though not a perfect match.

Soil Texture

The silt loam soil in Craig 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

21
successive plantings in your 176-day season

Sow every 1.1 weeks. Last sowing by Sep 29 to harvest before frost.

For a dedicated fall crop, sow by Sep 14.

Crocus Water Budget

Plant needs
0.5″/week
Rainfall provides
1.0″/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 3.8" 0" ❄️ Dormant
Feb 3.3" 0" ❄️ Dormant
Mar 4.2" 0" ❄️ Dormant
Apr 2.2" 3.8" 0" ✅ Rainfall sufficient
May 2.2" 3.6" 0" ✅ Rainfall sufficient
Jun 2.2" 3.9" 0" ✅ Rainfall sufficient
Jul 2.2" 4.4" 0" ✅ Rainfall sufficient
Aug 2.2" 3.7" 0" ✅ Rainfall sufficient
Sep 2.2" 2.9" 0" ✅ Rainfall sufficient
Oct 2.2" 2.5" 0" ✅ Rainfall sufficient
Nov 3.2" 0" ❄️ Dormant
Dec 3.7" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Oct in Craig 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 ~206 GDD — county provides 2,420 GDD Excellent fit

Crocus Planting Timeline — Craig County, VA

Crocus Planting Calendar

Activity When Date Range
Bloom August 10 Aug 10 – Aug 31
Fall Sowing September 14 Sep 14 – Sep 28

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
October
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

176 days in Craig County

Growing Tips for Crocus in Craig County

Direct sow Crocus outdoors after April 26 in Craig County when soil has warmed and frost danger has passed.

Your generous 176.0-day season in Craig 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 →

Frequently Asked Questions

When should I plant Crocus in Craig County, VA?

Craig County is in Zone 7a with an average last frost of April 26. Plan your Crocus planting based on this frost date — see the calendar above for exact timing.

What planting zone is Craig County, VA?

Craig County, Virginia is in USDA Hardiness Zone 7a. The average last spring frost is April 26 and first fall frost is October 19.

🌱

Your Craig County Garden Planner — Free

A 22-page printable planner built for Craig 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 Craig County, VA. 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.