Blog

When to plant Bleeding Hearts in Union County, FL

In Union County, Bleeding Hearts is a single-season spring crop — there's no second fall window. Plant February 15–March 1 for an 60–90-day harvest, finishing well before the November 27 first frost.

When to Plant Bleeding Hearts in Union County, FL

Union County, Florida Zone 9a July

This month in Union County, Florida

Welcome to July in Zone 9a. These are the moves that will have the biggest impact on your growing season.

Avg. last frost March 1
Avg. first frost November 27
Soil temp (4") 97°F
Watering Low
Pest pressure High
Daylight 13.8 hrs

Instant PDF download. No spam, unsubscribe any time.

Bleeding Hearts (Lamprocapnos spectabilis) are elegant woodland perennials producing arching stems hung with distinctive heart-shaped pink or white flowers with protruding inner petals — the "drops" beneath each heart. A beloved heirloom perennial from Asia, bleeding hearts emerge vigorously in spring, bloom prolifically for 4–6 weeks, and then go dormant in summer heat — a natural die-back that is entirely normal. The dormancy gap should be planned for by interplanting with summer-emerging hostas, ferns, or impatiens. Fringed bleeding heart (Dicentra eximia), a US native, has a longer bloom season and does not go fully dormant. All parts are toxic if ingested.

Union County, Florida is in USDA Zone 9a. The average last spring frost is March 1 and the first fall frost is November 27, giving you a growing season of approximately 271 days.

At an elevation of 360 feet, Union County receives approximately 60.6 inches of rainfall annually with predominantly sand soil. Summer highs average 96°F, so Bleeding Hearts may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Bleeding Hearts will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Bleeding Hearts root diseases.

Perennial Blooms in Spring Pollinator-friendly Deer-resistant Good for cutting
Union County, FL (Zone 9a) Year-round
271 days
Last Spring Frost March 1
271 growing days
First Fall Frost November 27

Union County Soil Profile

Soil Type

Sand

Soil pH

5.2-6

Drainage

Well Drained

Bleeding Hearts Planting Risk Windows

Early Start (70% safe) ✓ Fits season (219 days to spare)
Start indoors: Dec 20 Transplant: Jan 31 🌸 Bloom: Mar 21 – Apr 11
Recommended (50%) ✓ Fits season (215 days to spare)
Start indoors: Jan 4 Transplant: Feb 15 🌸 Bloom: Apr 5 – Apr 26
Safe Start (90%) ✓ Fits season (213 days to spare)
Start indoors: Jan 29 Transplant: Mar 12 🌸 Bloom: Apr 30 – May 21

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 Union County

How your county's soil matches Bleeding Hearts's growing requirements.

Soil pH

Your soil pH (5.2–6.0) is more acidic than Bleeding Hearts prefers (6.0–7.0). Add garden lime to raise pH.

Soil Texture

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

Drainage

Drainage is adequate for Bleeding Hearts.

Organic Matter

Organic matter is low (1.3%). Add 2-3 inches of compost before planting Bleeding Hearts.

How to Plant Bleeding Hearts

1.5"
Planting Depth
24"
Between Plants
30"
Between Rows

Succession Planting Bleeding Hearts

5
successive plantings in your 271-day season

Sow every 6.9 weeks. Last sowing by Aug 29 to harvest before frost.

Bleeding Hearts Water Budget

Plant needs
1.0″/week
Rainfall provides
0.9″/week
You supply
0.4″/week
Watering frequency 1-2 times/week
Season total 870 gal / 100 sq ft

Monthly Watering Guide for Bleeding Hearts

Bleeding Hearts needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Bleeding Hearts Needs Rainfall You Supplement Action
Jan 3.1" 0" ❄️ Dormant
Feb 2.7" 0" ❄️ Dormant
Mar 4.3" 3.5" 0.8" 💧 Light watering
Apr 4.3" 2.8" 1.5" 💧 Light watering
May 4.3" 4.4" 0" ✅ Rainfall sufficient
Jun 4.3" 8.1" 0" ✅ Rainfall sufficient
Jul 4.3" 10" 0" ✅ Rainfall sufficient
Aug 4.3" 9" 0" ✅ Rainfall sufficient
Sep 4.3" 7.2" 0" ✅ Rainfall sufficient
Oct 4.3" 4.5" 0" ✅ Rainfall sufficient
Nov 4.3" 2.7" 1.6" 💧 Light watering
Dec 2.5" 0" ❄️ Dormant

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

Bleeding Hearts 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.

Bleeding Hearts needs ~1,650 GDD — county provides 5,962 GDD Excellent fit

Bleeding Hearts Planting Timeline — Union County, FL

Bleeding Hearts Planting Calendar

Activity When Date Range
Start Indoors January 4 Jan 4 – Jan 18
Transplant Outdoors February 15 Feb 15 – Mar 1
Bloom April 5 Apr 5 – Apr 26

Plant 1.5" deep · 24" apart · Rows 30" apart

Month-by-Month Timeline

MonthActivities
January Start Indoors
February Transplant Outdoors
March Transplant Outdoors
April Bloom
May
June
July
August
September
October
November
December

Growing Conditions

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

1"/week · 1-2 times/week

📅 Days to Maturity

60–90 days

🧪 Soil pH

Needs 6–7 · Your soil: too_acidic

🗺️ USDA Zone

Zone 9a

📆 Growing Season

271 days in Union County

Growing Tips for Bleeding Hearts in Union County

Direct sow Bleeding Hearts outdoors after March 01 in Union County when soil has warmed and frost danger has passed.

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

With summer highs reaching 96°F in Union County, provide afternoon shade for Bleeding Hearts and water deeply in the morning.

General growing tips

Plant bare-root crowns in early spring as soon as soil is workable, or in fall at least 6 weeks before hard freeze. Set eyes 1–2 inches below soil level. Morning sun with afternoon shade is ideal; deep shade is tolerated but reduces bloom. Keep moist but well-drained — will not tolerate waterlogged soil. After flowering, the foliage will yellow and die back in summer heat — this is normal. Do not cut back until foliage turns fully yellow; the plant is storing energy. Mark the location to avoid disturbing crowns during summer dormancy. Divide every 4–5 years in early spring. Year 2+ plants produce the fullest flowering display.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Bleeding Hearts in Union County, FL?

Union County is in Zone 9a with an average last frost of March 1. Plan your Bleeding Hearts planting based on this frost date — see the calendar above for exact timing.

What planting zone is Union County, FL?

Union County, Florida is in USDA Hardiness Zone 9a. The average last spring frost is March 1 and first fall frost is November 27.

When should I plant Bleeding Hearts in Union County, FL?

In Union County, FL, plant Bleeding Hearts after the last frost (around March 1) and before the first frost (around November 27). Best results when soil holds above 50°F.

What growing zone is Union County, FL for Bleeding Hearts?

Union County sits in USDA Zone 9a. Bleeding Hearts grows reliably in zones 3a through 9a, so it's a good fit here.

Can Bleeding Hearts grow in Union County's climate?

Yes — Bleeding Hearts grows well in Union County's temperate climate. Union County averages a 271-day frost-free season, with last frost around March 1 and first frost around November 27.

🌱

Your Union County Garden Planner — Free

A 22-page printable planner built for Union 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.

Instant PDF download. No spam, unsubscribe any time.

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

Sources & credits

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