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When to plant Hyacinths in Kit Carson County, CO

Kit Carson County's climate puts the Hyacinths spring window between mid-spring and late spring. time plantings around the expected last-frost window for best survival. A second sowing from August 27 to September 10 extends the harvest into fall.

When to Plant Hyacinths in Kit Carson County, CO

Kit Carson County, Colorado Zone 6a June

Your June game plan for Kit Carson County, Colorado

Your garden in Kit Carson County, Colorado is working on a schedule, even when you're not. Here's where you should be this June.

Avg. last frost May 9
Avg. first frost October 8
Soil temp (4") 49°F
Watering High
Pest pressure High
Daylight 14.8 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.

Kit Carson County, Colorado is in USDA Zone 6a. The average last spring frost is May 9 and the first fall frost is October 8, giving you a growing season of approximately 152 days.

At an elevation of 6,382 feet, Kit Carson County receives approximately 23.2 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
Kit Carson County, CO (Zone 6a) Moderate season
152 days
Last Spring Frost May 9
152 growing days
First Fall Frost October 8

Kit Carson County Soil Profile

Soil Type

Loam

Soil pH

6.4-8

Drainage

Well Drained

Hyacinths Planting Risk Windows

Early Start (70% safe) ✓ Fits season (149 days to spare)
Transplant: May 1 🌸 Bloom: Apr 17 – May 8
Recommended (50%) ✓ Fits season (145 days to spare)
Transplant: May 9 🌸 Bloom: Apr 25 – May 16
Safe Start (90%) ✓ Fits season (149 days to spare)
Transplant: May 20 🌸 Bloom: May 6 – May 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 Kit Carson County

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

Soil pH

Your soil pH (6.4–8.0) overlaps with Hyacinths's range (6.0–7.5), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is moderate (2.3%). Annual compost additions will help Hyacinths.

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

13
successive plantings in your 152-day season

Sow every 1.6 weeks. Last sowing by Sep 10 to harvest before frost.

For a dedicated fall crop, sow by Aug 27.

Hyacinths Water Budget

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

Water stress score is 8/10 — 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 1.5" 0" ❄️ Dormant
Feb 1.4" 0" ❄️ Dormant
Mar 2.2" 0" ❄️ Dormant
Apr 2.4" 0" ❄️ Dormant
May 2.2" 2.8" 0" ✅ Rainfall sufficient
Jun 2.2" 1.4" 0.8" 💧 Light watering
Jul 2.2" 2.2" 0" ✅ Rainfall sufficient
Aug 2.2" 2.7" 0" ✅ Rainfall sufficient
Sep 2.2" 1.9" 0.3" 💧 Light watering
Oct 2.2" 1.9" 0.3" 💧 Light watering
Nov 1.5" 0" ❄️ Dormant
Dec 1.3" 0" ❄️ Dormant

Water needs are for active growing months only (May–Oct in Kit Carson 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 2,090 GDD Excellent fit

Hyacinths Planting Timeline — Kit Carson County, CO

Hyacinths Planting Calendar

Activity When Date Range
Bloom August 13 Aug 13 – Sep 3
Fall Sowing August 27 Aug 27 – Sep 10

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

Month-by-Month Timeline

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

🗺️ USDA Zone

Zone 6a

📆 Growing Season

152 days in Kit Carson County

Growing Tips for Hyacinths in Kit Carson County

Direct sow Hyacinths outdoors after May 09 in Kit Carson County when soil has warmed and frost danger has passed.

Your generous 152.0-day season in Kit Carson County allows multiple plantings of Hyacinths. Sow every 7.0 days for continuous harvest.

Kit Carson County receives only 23" 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 Kit Carson County, CO?

Kit Carson County is in Zone 6a with an average last frost of May 9. Plan your Hyacinths planting based on this frost date — see the calendar above for exact timing.

What planting zone is Kit Carson County, CO?

Kit Carson County, Colorado is in USDA Hardiness Zone 6a. The average last spring frost is May 9 and first fall frost is October 8.

When should I plant Hyacinths in Kit Carson County, CO?

In Kit Carson County, CO, plant Hyacinths after the last frost (around May 9) and before the first frost (around October 8). Best results when soil holds above 50°F.

What growing zone is Kit Carson County, CO for Hyacinths?

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

Can Hyacinths grow in Kit Carson County's climate?

Yes — Hyacinths grows well in Kit Carson County's temperate climate. Kit Carson County averages a 152-day frost-free season, with last frost around May 9 and first frost around October 8.

🌱

Your Kit Carson County Garden Planner — Free

A 22-page printable planner built for Kit Carson County (Zone 6a). 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 Kit Carson County, CO. Local conditions may vary. Last updated: June 2026.

Sources & credits

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