When to plant Hyacinths in Sutter County, CA
Aim to plant Hyacinths in Sutter County on or after mid-spring; the window stays open through late spring. Sutter County's 267-day frost-free season gives you plenty of room for a spring and fall cycle. A second sowing from November 5 to November 19 extends the harvest into fall.
When to Plant Hyacinths in Sutter County, CA
This month in Sutter County, California
Your garden in Sutter County, California is working on a schedule, even when you're not. Here's where you should be this August.
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.
Sutter County, California is in USDA Zone 9b. The average last spring frost is March 4 and the first fall frost is November 26, giving you a growing season of approximately 267 days.
At an elevation of 484 feet, Sutter County receives approximately 21.4 inches of rainfall annually with predominantly loam soil. Summer highs average 88°F, providing good warmth for Hyacinths during the growing season.
Sutter County Soil Profile
Soil Type
Loam
Soil pH
6.8-7.7
Drainage
Well Drained
Hyacinths Planting Risk Windows
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 Sutter County
How your county's soil matches Hyacinths's growing requirements.
Soil pH
Your soil pH (6.8–7.7) overlaps with Hyacinths's range (6.0–7.5), though not a perfect match.
Soil Texture
The loam soil in Sutter County is excellent for Hyacinths — good drainage, moisture retention, and nutrient holding capacity.
Drainage
Drainage is adequate for Hyacinths.
Organic Matter
Organic matter is moderate (2.4%). Annual compost additions will help Hyacinths.
How to Plant Hyacinths
Fall planting: Sow 3 weeks before your first frost date for a fall harvest.
Succession Planting Hyacinths
Sow every 1.6 weeks. Last sowing by Oct 29 to harvest before frost.
For a dedicated fall crop, sow by Nov 05.
Hyacinths Water Budget
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 | — | 4.6" | 0" | ❄️ Dormant |
| Feb | — | 4.2" | 0" | ❄️ Dormant |
| Mar | 2.2" | 3.7" | 0" | ✅ Rainfall sufficient |
| Apr | 2.2" | 1.4" | 0.8" | 💧 Light watering |
| May | 2.2" | 0.6" | 1.6" | 🚿 Regular watering |
| Jun | 2.2" | 0.1" | 2.1" | 🚿 Regular watering |
| Jul | 2.2" | 0" | 2.2" | 🚿 Regular watering |
| Aug | 2.2" | 0" | 2.2" | 🚿 Regular watering |
| Sep | 2.2" | 0.2" | 2" | 🚿 Regular watering |
| Oct | 2.2" | 0.9" | 1.3" | 🚿 Regular watering |
| Nov | 2.2" | 1.8" | 0.4" | 💧 Light watering |
| Dec | — | 3.8" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Mar–Nov in Sutter 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 Planting Timeline — Sutter County, CA
Hyacinths Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Bloom | November 5 | Nov 5 – Nov 26 |
| Fall Sowing | November 5 | Nov 5 – Nov 19 |
Plant 6" deep · 6" apart · Rows 8" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | — |
| April | — |
| May | — |
| June | — |
| July | — |
| August | — |
| September | — |
| October | — |
| November | Fall Sowing Bloom |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
0.5"/week · 1-2 times/week
📅 Days to Maturity
14–28 days
🧪 Soil pH
Needs 6–7.5 · Your soil: acceptable
🗺️ USDA Zone
Zone 9b
📆 Growing Season
267 days in Sutter County
Growing Tips for Hyacinths in Sutter County
Direct sow Hyacinths outdoors after March 04 in Sutter County when soil has warmed and frost danger has passed.
Your generous 267.0-day season in Sutter County allows multiple plantings of Hyacinths. Sow every 7.0 days for continuous harvest.
Sutter County receives only 21" 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 →
Hyacinths in Other Locations
Frequently Asked Questions
When should I plant Hyacinths in Sutter County, CA?
Sutter County is in Zone 9b with an average last frost of March 4. Plan your Hyacinths planting based on this frost date — see the calendar above for exact timing.
What planting zone is Sutter County, CA?
Sutter County, California is in USDA Hardiness Zone 9b. The average last spring frost is March 4 and first fall frost is November 26.
When should I plant Hyacinths in Sutter County, CA?
In Sutter County, CA, plant Hyacinths after the last frost (around March 4) and before the first frost (around November 26). Best results when soil holds above 50°F.
What growing zone is Sutter County, CA for Hyacinths?
Sutter County sits in USDA Zone 9b. Hyacinths grows reliably in zones 3a through 9b, so it's a good fit here.
Can Hyacinths grow in Sutter County's climate?
Yes — Hyacinths grows well in Sutter County's temperate climate. Sutter County averages a 267-day frost-free season, with last frost around March 4 and first frost around November 26.
Your Sutter County Garden Planner — Free
A 22-page printable planner built for Sutter County (Zone 9b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.