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When to plant Hyacinths in Calhoun County, FL

Hyacinths planted in Calhoun County between mid-spring and late spring matures in 14–28 days — well before the November 20 first frost. A second sowing from October 23 to November 6 extends the harvest into fall.

When to Plant Hyacinths in Calhoun County, FL

Calhoun County, Florida Zone 9a June

Calhoun County, Florida gardeners: here's your June plan

June rewards gardeners who work with the weather, not against it. Here's how to stay in step this month in Calhoun County, Florida.

Avg. last frost March 5
Avg. first frost November 20
Soil temp (4") 84°F
Watering Low
Pest pressure High
Daylight 14 hrs

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Hyacinths (Hyacinthus orientalis) fill the spring garden with an almost overwhelming fragrance — a single cluster of blooms can perfume an entire yard. Dense, upright spikes of waxy florets in shades of purple, pink, blue, white, and red emerge in mid-spring, bridging the gap between the first crocus and the tulip peak. Though bulbs bloom most spectacularly in their first year, established plantings continue to produce graceful, less-dense flower spikes for several years. Deer and rabbits avoid them due to toxic alkaloids.

Calhoun County, Florida is in USDA Zone 9a. The average last spring frost is March 5 and the first fall frost is November 20, giving you a growing season of approximately 260 days.

At an elevation of 178 feet, Calhoun County receives approximately 61.2 inches of rainfall annually with predominantly sand soil. Summer highs average 93°F, providing good warmth for Hyacinths during the growing season. Sandy soil warms quickly in spring — great for early planting — but Hyacinths will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Hyacinths root diseases.

Bulb Blooms in Spring Pollinator-friendly Deer-resistant Good for cutting Fragrant
Calhoun County, FL (Zone 9a) Long season
260 days
Last Spring Frost March 5
260 growing days
First Fall Frost November 20

Calhoun County Soil Profile

Soil Type

Sand

Soil pH

4.8-5.7

Drainage

Well Drained

Hyacinths Planting Risk Windows

Early Start (70% safe) ✓ Fits season (241 days to spare)
Transplant: Feb 23
Recommended (50%) ✓ Fits season (239 days to spare)
Transplant: Mar 5
Safe Start (90%) ✓ Fits season (239 days to spare)
Transplant: Mar 27

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 Calhoun County

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

Soil pH

Your soil pH (4.8–5.7) is more acidic than Hyacinths prefers (6.0–7.5). Add garden lime to raise pH.

Soil Texture

Sandy soil in Calhoun County warms quickly in spring but drains fast. Hyacinths will need more frequent watering and regular compost additions to retain nutrients.

Drainage

Drainage is adequate for Hyacinths.

Organic Matter

Organic matter is low (1.6%). Add 2-3 inches of compost before planting Hyacinths.

How to Plant Hyacinths

6"
Planting Depth
6"
Between Plants
8"
Between Rows

Fall planting: Sow 4 weeks before your first frost date for a fall harvest.

Succession Planting Hyacinths

23
successive plantings in your 260-day season

Sow every 1.6 weeks. Last sowing by Oct 23 to harvest before frost.

For a dedicated fall crop, sow by Oct 23.

Hyacinths 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 Hyacinths

Hyacinths 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 Hyacinths Needs Rainfall You Supplement Action
Jan 2.5" 0" ❄️ Dormant
Feb 2.7" 0" ❄️ Dormant
Mar 2.2" 3.5" 0" ✅ Rainfall sufficient
Apr 2.2" 3.1" 0" ✅ Rainfall sufficient
May 2.2" 4.2" 0" ✅ Rainfall sufficient
Jun 2.2" 9" 0" ✅ Rainfall sufficient
Jul 2.2" 8.8" 0" ✅ Rainfall sufficient
Aug 2.2" 8.4" 0" ✅ Rainfall sufficient
Sep 2.2" 8.6" 0" ✅ Rainfall sufficient
Oct 2.2" 5" 0" ✅ Rainfall sufficient
Nov 2.2" 2.5" 0" ✅ Rainfall sufficient
Dec 2.9" 0" ❄️ Dormant

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

Hyacinths 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.

Hyacinths needs ~415 GDD — county provides 5,135 GDD Excellent fit

Hyacinths Planting Timeline — Calhoun County, FL

Hyacinths Planting Calendar

Activity When Date Range
Bloom October 23 Oct 23 – Nov 13
Fall Sowing October 23 Oct 23 – Nov 6

Plant 6" deep · 6" apart · Rows 8" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.5"/week · Natural rainfall sufficient

📅 Days to Maturity

14–28 days

🧪 Soil pH

Needs 6–7.5 · Your soil: too_acidic

🗺️ USDA Zone

Zone 9a

📆 Growing Season

260 days in Calhoun County

Growing Tips for Hyacinths in Calhoun County

Direct sow Hyacinths outdoors after March 05 in Calhoun County when soil has warmed and frost danger has passed.

Sandy soil in Calhoun County dries quickly — mulch Hyacinths with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

Your generous 260.0-day season in Calhoun County allows multiple plantings of Hyacinths. Sow every 7.0 days for continuous harvest.

General growing tips

Plant bulbs 6 inches deep and 6 inches apart in fall, when soil drops below 60°F. Wear gloves when handling — bulb sap causes contact dermatitis in some people. After bloom, deadhead the spent spike but leave the strap-like foliage until it yellows naturally. For naturalizing, plant at 6–8 inch spacings and allow clumps to mature undisturbed. In zones 7b–9b, treat bulbs as annuals or use pre-chilled stock; performance after year 1 declines in warm-winter zones. For forcing indoors, chill bulbs 10–12 weeks then bring into warmth.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Hyacinths in Calhoun County, FL?

Calhoun County is in Zone 9a with an average last frost of March 5. Plan your Hyacinths planting based on this frost date — see the calendar above for exact timing.

What planting zone is Calhoun County, FL?

Calhoun County, Florida is in USDA Hardiness Zone 9a. The average last spring frost is March 5 and first fall frost is November 20.

When should I plant Hyacinths in Calhoun County, FL?

In Calhoun County, FL, plant Hyacinths after the last frost (around March 5) and before the first frost (around November 20). Best results when soil holds above 50°F.

What growing zone is Calhoun County, FL for Hyacinths?

Calhoun County sits in USDA Zone 9a. Hyacinths grows reliably in zones 3a through 9b, so it's a good fit here.

Can Hyacinths grow in Calhoun County's climate?

Yes — Hyacinths grows well in Calhoun County's temperate climate. Calhoun County averages a 260-day frost-free season, with last frost around March 5 and first frost around November 20.

🌱

Your Calhoun County Garden Planner — Free

A 22-page printable planner built for Calhoun County (Zone 9a). 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 Calhoun County, FL. Local conditions may vary. Last updated: June 2026.

Sources & credits

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