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When to plant Bleeding Hearts in Kent County County,

Plant Bleeding Hearts in Kent County County, between April 9 and April 23 — the only viable window. Zone 7b's short season (216 frost-free days) rules out a fall crop.

When to Plant Bleeding Hearts in Kent County, DE

Kent County, Delaware Zone 7b June

Top priorities for Kent County, Delaware gardeners in June

Your Kent County, Delaware garden is entering a new phase. Here's what's on the schedule for June and why each task matters now.

Avg. last frost April 2
Avg. first frost November 4
Soil temp (4") 76°F
Watering Low
Pest pressure High
Daylight 14.7 hrs
  1. Get bleeding hearts seeds going inside

    Label every cell. You will absolutely forget which is which otherwise.

  2. Pick bleeding hearts

    This is the payoff month. Bring a basket, bring a friend, and get into the beds.

July will be here before you know it — start on
  • First harvests: bleeding hearts

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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.

Kent County, Delaware is in USDA Zone 7b. The average last spring frost is April 2 and the first fall frost is November 4, giving you a growing season of approximately 216 days.

At an elevation of 128 feet, Kent County receives approximately 47.9 inches of rainfall annually with predominantly silt loam soil. Summer highs average 88°F, providing good warmth for Bleeding Hearts during the growing season.

Perennial Blooms in Spring Pollinator-friendly Deer-resistant Good for cutting
Kent County, DE (Zone 7b) Long season
216 days
Last Spring Frost April 2
216 growing days
First Fall Frost November 4
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Kent County Soil Profile

Soil Type

Silt Loam

Soil pH

5.8-6.8

Drainage

Well Drained

Bleeding Hearts Planting Risk Windows

Early Start (70% safe) ✓ Fits season (125 days to spare)
Start indoors: Jan 24 Transplant: Apr 4 🌸 Bloom: May 23 – Jun 27
Recommended (50%) ✓ Fits season (125 days to spare)
Start indoors: Jan 29 Transplant: Apr 9 🌸 Bloom: May 28 – Jul 2
Safe Start (90%) ✓ Fits season (120 days to spare)
Start indoors: Feb 14 Transplant: Apr 25 🌸 Bloom: Jun 13 – Jul 18

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 Kent County

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

Soil pH

Your soil pH (5.8–6.8) overlaps with Bleeding Hearts's range (6.0–7.0), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is moderate (3.2%). Annual compost additions will help Bleeding Hearts.

How to Plant Bleeding Hearts

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

Succession Planting Bleeding Hearts

4
successive plantings in your 216-day season

Sow every 6.9 weeks. Last sowing by Aug 06 to harvest before frost.

Bleeding Hearts Water Budget

Plant needs
1.0″/week
Rainfall provides
0.9″/week
You supply
0.1″/week
Watering frequency Only during dry spells
Season total 132 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 4" 0" ❄️ Dormant
Feb 2.9" 0" ❄️ Dormant
Mar 3.5" 0" ❄️ Dormant
Apr 4.3" 4" 0.3" 💧 Light watering
May 4.3" 4.6" 0" ✅ Rainfall sufficient
Jun 4.3" 3.9" 0.4" 💧 Light watering
Jul 4.3" 5.6" 0" ✅ Rainfall sufficient
Aug 4.3" 4.9" 0" ✅ Rainfall sufficient
Sep 4.3" 3.7" 0.6" 💧 Light watering
Oct 4.3" 4" 0.3" 💧 Light watering
Nov 4.3" 3.5" 0.8" 💧 Light watering
Dec 3.3" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Nov in Kent 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 ~1,200 GDD — county provides 3,456 GDD Excellent fit

Bleeding Hearts Planting Timeline — Kent County, DE

Bleeding Hearts Planting Calendar

Activity When Date Range
Start Indoors January 29 Jan 29 – Feb 12
Transplant Outdoors April 9 Apr 9 – Apr 23
Bloom May 28 May 28 – Jul 2

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

Month-by-Month Timeline

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

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

1"/week · Only during dry spells

📅 Days to Maturity

60–90 days

🧪 Soil pH

Needs 6–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 7b

📆 Growing Season

216 days in Kent County

Growing Tips for Bleeding Hearts in Kent County

Direct sow Bleeding Hearts outdoors after April 02 in Kent County when soil has warmed and frost danger has passed.

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 Kent County, DE?

Kent County is in Zone 7b with an average last frost of April 2. Plan your Bleeding Hearts planting based on this frost date — see the calendar above for exact timing.

What planting zone is Kent County, DE?

Kent County, Delaware is in USDA Hardiness Zone 7b. The average last spring frost is April 2 and first fall frost is November 4.

When should I plant Bleeding Hearts in Kent County County, ?

In Kent County County, , plant Bleeding Hearts after the last frost (around April 2) and before the first frost (around November 4). Best results when soil holds above 50°F.

What growing zone is Kent County County, for Bleeding Hearts?

Kent County County sits in USDA Zone 7b. Bleeding Hearts grows reliably in zones 3a through 9a, so it's a good fit here.

Can Bleeding Hearts grow in Kent County County's climate?

Yes — Bleeding Hearts grows well in Kent County County's temperate climate. Kent County County averages a 216-day frost-free season, with last frost around April 2 and first frost around November 4.

🌱

Your Kent County Garden Planner — Free

A 22-page printable planner built for Kent County (Zone 7b). 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 Kent County, DE. 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.