When to plant Beets in Phillipsville, CA
Plant Beets in Phillipsville from February 6 to February 27 in spring. Phillipsville sits in USDA Zone 9b, with last frost around February 27 and first frost on November 28. A second sowing from October 3 to October 17 extends the harvest into fall.
When to Plant Beets in Phillipsville, CA
Your August gardening checklist
Welcome to August in Zone 9b. These are the moves that will have the biggest impact on your growing season.
Beets are a dual-purpose root vegetable with edible roots and nutritious greens. They come in red, golden, and striped varieties and are rich in vitamins and minerals.
Phillipsville, California is in USDA Zone 9b. The average last spring frost is February 27 and the first fall frost is November 28, giving you a growing season of approximately 274 days.
At an elevation of 148 feet, Humboldt County receives approximately 22.1 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 87°F, providing good warmth for Beets during the growing season. Sandy soil warms quickly in spring — great for early planting — but Beets will need more frequent watering and organic matter to retain nutrients.
Phillipsville Soil Profile
Soil Type
Sandy Loam
Soil pH
6.2-6.8
Drainage
Well Drained
Beets 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 Phillipsville
How your county's soil matches Beets's growing requirements.
Soil pH
Your soil pH (6.2–6.8) is within Beets's preferred range (6.0–7.5).
Soil Texture
Sandy soil in Humboldt County warms quickly in spring but drains fast. Beets will need more frequent watering and regular compost additions to retain nutrients.
Organic Matter
Organic matter is moderate (2.3%). Annual compost additions will help Beets.
How to Plant Beets
Fall planting: Sow 8 weeks before your first frost date for a fall harvest.
Succession Planting Beets
Sow every 5.7 weeks. Last sowing by Sep 19 to harvest before frost.
For a dedicated fall crop, sow by Oct 03.
Beets Water Budget
Monthly Watering Guide for Beets
Beets needs approximately 0.8 inches of water per week (3.5" per month). Here's how your county's rainfall compares month by month.
| Month | Beets Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 4.8" | 0" | ❄️ Dormant |
| Feb | 3.5" | 5" | 0" | ✅ Rainfall sufficient |
| Mar | 3.5" | 3.3" | 0.2" | 💧 Light watering |
| Apr | 3.5" | 1.7" | 1.8" | 🚿 Regular watering |
| May | 3.5" | 0.5" | 3" | 🚿 Regular watering |
| Jun | 3.5" | 0.1" | 3.4" | 🚿 Regular watering |
| Jul | 3.5" | 0" | 3.5" | 🚿 Regular watering |
| Aug | 3.5" | 0" | 3.5" | 🚿 Regular watering |
| Sep | 3.5" | 0.3" | 3.2" | 🚿 Regular watering |
| Oct | 3.5" | 0.8" | 2.7" | 🚿 Regular watering |
| Nov | 3.5" | 1.9" | 1.6" | 💧 Light watering |
| Dec | — | 3.7" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Feb–Nov in Humboldt County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Beets 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.
Beets Planting Timeline — Phillipsville, CA
Beets Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Direct Sow | February 6 | Feb 6 – Feb 27 |
| Harvest | April 3 | Apr 3 – May 1 |
| Fall Sowing | October 3 | Oct 3 – Oct 17 |
Plant 0.5" deep · 4" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | Direct Sow |
| March | — |
| April | Harvest |
| May | Harvest |
| June | — |
| July | — |
| August | — |
| September | — |
| October | Fall Sowing |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
0.8"/week · 1-2 times/week
📅 Days to Maturity
50–70 days
🧪 Soil pH
Needs 6–7.5 · Your soil: ideal
🗺️ USDA Zone
Zone 9b
📆 Growing Season
274 days in Humboldt County
Growing Tips for Beets in Phillipsville
Direct sow Beets outdoors after February 27 in Humboldt County when soil has warmed and frost danger has passed.
Sandy soil in Humboldt County dries quickly — mulch Beets with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.
General growing tips
Soak seeds overnight before planting to improve germination. Thin seedlings to 3-4 inches apart. Harvest roots when 1.5-3 inches in diameter for best texture.
Companion Planting
Good Companions
Avoid Planting Near
Check more plant combinations with our Companion Planting Checker →
Isolate 1/2 mile from Swiss chard — same species, they will cross.
Beets in Other Locations
When should I plant Beets in Phillipsville, CA?
In Phillipsville, CA, plant Beets after the last frost (around February 27) and before the first frost (around November 28). Best results when soil holds above 50°F.
What growing zone is Phillipsville, CA for Beets?
Phillipsville sits in USDA Zone 9b. Beets grows reliably in zones 2a through 11b, so it's a good fit here.
Can Beets grow in Phillipsville's climate?
Yes — Beets grows well in Phillipsville's temperate climate. Phillipsville averages a 275-day frost-free season, with last frost around February 27 and first frost around November 28.
Your Humboldt County Garden Planner — Free
A 22-page printable planner built for Humboldt 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.