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When to plant Hyacinths in Franklin County County,

Plant Hyacinths in Franklin County County from mid-spring to late spring in spring. Franklin County County sits in USDA Zone 6b, with last frost around April 12 and first frost on October 25. A second sowing from September 13 to September 27 extends the harvest into fall.

When to Plant Hyacinths in Franklin County, KS

Franklin County, Kansas Zone 6b June

Your June gardening checklist

June is a pivotal month for Franklin County, Kansas gardens. Focus on these tasks first and you'll set up the rest of the season for success.

Avg. last frost April 12
Avg. first frost October 25
Soil temp (4") 75°F
Watering Low
Pest pressure High
Daylight 14.7 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.

Franklin County, Kansas is in USDA Zone 6b. The average last spring frost is April 12 and the first fall frost is October 25, giving you a growing season of approximately 196 days.

At an elevation of 834 feet, Franklin County receives approximately 24.3 inches of rainfall annually with predominantly loam soil. Summer highs average 85°F, providing good warmth for Hyacinths during the growing season.

Bulb Blooms in Spring Pollinator-friendly Deer-resistant Good for cutting Fragrant
Franklin County, KS (Zone 6b) Moderate season
196 days
Last Spring Frost April 12
196 growing days
First Fall Frost October 25
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Franklin County Soil Profile

Soil Type

Loam

Soil pH

6.3-7.2

Drainage

Well Drained

Hyacinths Planting Risk Windows

Early Start (70% safe) ✓ Fits season (187 days to spare)
Transplant: Apr 6 🌸 Bloom: Mar 23 – Apr 13
Recommended (50%) ✓ Fits season (189 days to spare)
Transplant: Apr 12 🌸 Bloom: Mar 29 – Apr 19
Safe Start (90%) ✓ Fits season (191 days to spare)
Transplant: Apr 26 🌸 Bloom: Apr 12 – May 3

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 Franklin County

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

Soil pH

Your soil pH (6.3–7.2) is within Hyacinths's preferred range (6.0–7.5).

Soil Texture

The loam soil in Franklin County is excellent for Hyacinths — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is excellent (4.2%) — Hyacinths will thrive.

How to Plant Hyacinths

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

Fall planting: Sow 6 weeks before your first frost date for a fall harvest.

Succession Planting Hyacinths

17
successive plantings in your 196-day season

Sow every 1.6 weeks. Last sowing by Sep 27 to harvest before frost.

For a dedicated fall crop, sow by Sep 13.

Hyacinths Water Budget

Plant needs
0.5″/week
Rainfall provides
0.5″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Drought risk

Water stress score is 6/10 — consider drought-tolerant varieties and mulching

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 0.6" 0" ❄️ Dormant
Feb 0.8" 0" ❄️ Dormant
Mar 1.3" 0" ❄️ Dormant
Apr 2.2" 2.4" 0" ✅ Rainfall sufficient
May 2.2" 3.6" 0" ✅ Rainfall sufficient
Jun 2.2" 4.2" 0" ✅ Rainfall sufficient
Jul 2.2" 3.3" 0" ✅ Rainfall sufficient
Aug 2.2" 3" 0" ✅ Rainfall sufficient
Sep 2.2" 2.2" 0" ✅ Rainfall sufficient
Oct 2.2" 1.5" 0.7" 💧 Light watering
Nov 0.8" 0" ❄️ Dormant
Dec 0.7" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Oct in Franklin 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 ~289 GDD — county provides 2,695 GDD Excellent fit

Hyacinths Planting Timeline — Franklin County, KS

Hyacinths Planting Calendar

Activity When Date Range
Bloom August 30 Aug 30 – Sep 20
Fall Sowing September 13 Sep 13 – Sep 27

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

Month-by-Month Timeline

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

🗺️ USDA Zone

Zone 6b

📆 Growing Season

196 days in Franklin County

Growing Tips for Hyacinths in Franklin County

Direct sow Hyacinths outdoors after April 12 in Franklin County when soil has warmed and frost danger has passed.

Your generous 196.0-day season in Franklin County allows multiple plantings of Hyacinths. Sow every 7.0 days for continuous harvest.

Franklin County receives only 24" of rain annually. Hyacinths needs consistent moisture — install drip irrigation or water deeply 2-3 times per week.

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 Franklin County, KS?

Franklin County is in Zone 6b with an average last frost of April 12. Plan your Hyacinths planting based on this frost date — see the calendar above for exact timing.

What planting zone is Franklin County, KS?

Franklin County, Kansas is in USDA Hardiness Zone 6b. The average last spring frost is April 12 and first fall frost is October 25.

When should I plant Hyacinths in Franklin County County, ?

In Franklin County County, , plant Hyacinths after the last frost (around April 12) and before the first frost (around October 25). Best results when soil holds above 50°F.

What growing zone is Franklin County County, for Hyacinths?

Franklin County County sits in USDA Zone 6b. Hyacinths grows reliably in zones 3a through 9b, so it's a good fit here.

Can Hyacinths grow in Franklin County County's climate?

Yes — Hyacinths grows well in Franklin County County's temperate climate. Franklin County County averages a 196-day frost-free season, with last frost around April 12 and first frost around October 25.

🌱

Your Franklin County Garden Planner — Free

A 22-page printable planner built for Franklin County (Zone 6b). 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 Franklin County, KS. Local conditions may vary. Last updated: June 2026.

Sources & credits

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