When to plant Lavender in El Dorado County County,
El Dorado County County's 225-day season only supports one Lavender planting per year. Sow between March 21 and April 4 for the best chance at full maturity before November 22.
When to Plant Lavender in El Dorado County, CA
What to do in June
Welcome to June in Zone 9b. These are the moves that will have the biggest impact on your growing season.
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Sow lavender in trays indoors
You're about 23 weeks out from your last frost — the perfect window to get these germinating indoors.
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Basket week: lavender
This is the payoff month. Bring a basket, bring a friend, and get into the beds.
Before July arrives, get these ready
- First harvests: lavender
Lavender (Lavandula angustifolia) is a fragrant Mediterranean sub-shrub prized for its silver-gray foliage and intensely aromatic purple flower spikes. A classic companion for roses and an unmatched pollinator magnet, lavender thrives in the exact conditions that challenge many plants: poor, rocky, alkaline soil with excellent drainage and full sun. English lavender is the most cold-hardy species, reliably perennial in Zones 5–9. Fresh or dried flowers are widely used in sachets, essential oils, culinary applications, and dried arrangements.
El Dorado County, California is in USDA Zone 9b. The average last spring frost is April 11 and the first fall frost is November 22, giving you a growing season of approximately 225 days.
At an elevation of 2,714 feet, El Dorado County receives approximately 41 inches of rainfall annually with predominantly loam soil. Summer highs average 83°F, so choose short-season varieties of Lavender to ensure they mature before fall.
El Dorado County Soil Profile
Soil Type
Loam
Soil pH
6.3-7.2
Drainage
Well Drained
Lavender 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 El Dorado County
How your county's soil matches Lavender's growing requirements.
Soil pH
Your soil pH (6.3–7.2) overlaps with Lavender's range (6.5–7.5), though not a perfect match.
Soil Texture
The loam soil in El Dorado County is excellent for Lavender — good drainage, moisture retention, and nutrient holding capacity.
Organic Matter
Organic matter is moderate (2.9%). Annual compost additions will help Lavender.
How to Plant Lavender
Lavender Water Budget
Water stress score is 6/10 — consider drought-tolerant varieties and mulching
Monthly Watering Guide for Lavender
Lavender needs approximately 0.3 inches of water per week (1.3" per month). Here's how your county's rainfall compares month by month.
| Month | Lavender Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 7.5" | 0" | ❄️ Dormant |
| Feb | — | 9.2" | 0" | ❄️ Dormant |
| Mar | — | 7" | 0" | ❄️ Dormant |
| Apr | 1.3" | 3.4" | 0" | ✅ Rainfall sufficient |
| May | 1.3" | 1.1" | 0.2" | 💧 Light watering |
| Jun | 1.3" | 0.2" | 1.1" | 🚿 Regular watering |
| Jul | 1.3" | 0" | 1.3" | 🚿 Regular watering |
| Aug | 1.3" | 0" | 1.3" | 🚿 Regular watering |
| Sep | 1.3" | 0.5" | 0.8" | 🚿 Regular watering |
| Oct | 1.3" | 1.6" | 0" | ✅ Rainfall sufficient |
| Nov | 1.3" | 3.8" | 0" | ✅ Rainfall sufficient |
| Dec | — | 6.8" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Apr–Nov in El Dorado County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Lavender 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.
Lavender Planting Timeline — El Dorado County, CA
Lavender Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | February 14 | Feb 14 – Feb 28 |
| Transplant Outdoors | March 21 | Mar 21 – Apr 4 |
| Bloom | May 30 | May 30 – Aug 22 |
Plant 0.5" deep · 18" apart · Rows 24" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | Start Indoors |
| March | Transplant Outdoors |
| April | Transplant Outdoors |
| May | Bloom |
| June | Bloom |
| July | Bloom |
| August | Bloom |
| September | — |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
0.3"/week · Natural rainfall sufficient
📅 Days to Maturity
90–120 days
🧪 Soil pH
Needs 6.5–7.5 · Your soil: acceptable
🗺️ USDA Zone
Zone 9b
📆 Growing Season
225 days in El Dorado County
Growing Tips for Lavender in El Dorado County
Direct sow Lavender outdoors after April 11 in El Dorado County when soil has warmed and frost danger has passed.
General growing tips
The single most important requirement for lavender success is excellent drainage — it will rot in heavy clay or wet winter soils before cold alone kills it. Amend with coarse sand or fine gravel if needed; raised beds work well in Zones 5–6. Start from rooted cuttings or transplants rather than seed for named cultivars. Transplant after last frost when soil is reliably warm (55°F+). Avoid rich or overly moist soils. Prune lightly after each flush of bloom, but never cut into old wood below the green growth zone — it will not regenerate from leafless woody stems. In Zones 5–6, mulch lightly with gravel (not bark/organic material which traps moisture) around the crown for winter protection. Year 2+ plants develop into full, mature shrubs with the most prolific bloom.
Companion Planting
Good Companions
Check more plant combinations with our Companion Planting Checker →
Lavender in Other Locations
Frequently Asked Questions
When should I plant Lavender in El Dorado County, CA?
El Dorado County is in Zone 9b with an average last frost of April 11. Plan your Lavender planting based on this frost date — see the calendar above for exact timing.
What planting zone is El Dorado County, CA?
El Dorado County, California is in USDA Hardiness Zone 9b. The average last spring frost is April 11 and first fall frost is November 22.
When should I plant Lavender in El Dorado County County, ?
In El Dorado County County, , plant Lavender after the last frost (around April 11) and before the first frost (around November 22). Best results when soil holds above 50°F.
What growing zone is El Dorado County County, for Lavender?
El Dorado County County sits in USDA Zone 9b. Lavender grows reliably in zones 5a through 9b, so it's a good fit here.
Can Lavender grow in El Dorado County County's climate?
Yes — Lavender grows well in El Dorado County County's temperate climate. El Dorado County County averages a 225-day frost-free season, with last frost around April 11 and first frost around November 22.
Your El Dorado County Garden Planner — Free
A 22-page printable planner built for El Dorado 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.