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When to Plant Beets in Santa Cruz County, CA

Santa Cruz County, California Zone 9b May

May in Santa Cruz County, California — your action list

May rewards gardeners who work with the weather, not against it. Here's how to stay in step this month in Santa Cruz County, California.

Avg. last frost February 11
Avg. first frost December 4
Soil temp (4") 76°F
Watering Critical
Pest pressure High
Daylight 14 hrs

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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.

Santa Cruz County, California is in USDA Zone 9b. The average last spring frost is February 11 and the first fall frost is December 4, giving you a growing season of approximately 296 days.

At an elevation of 353 feet, Santa Cruz County receives approximately 18.3 inches of rainfall annually with predominantly loam soil. Summer highs average 94°F, providing good warmth for Beets during the growing season. With low rainfall, drip irrigation is essential for growing Beets successfully. Mulch heavily to conserve soil moisture.

Santa Cruz County, CA (Zone 9b) Year-round
296 days
Last Spring Frost February 11
296 growing days
First Fall Frost December 4

Santa Cruz County Soil Profile

Soil Type

Loam

Soil pH

6.4-7.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (220 days to spare)
Transplant: Jan 28 🍅 Harvest: Mar 25 – Apr 22
Recommended (50%) ✓ Fits season (212 days to spare)
Transplant: Feb 11 🍅 Harvest: Apr 8 – May 6
Safe Start (90%) ✓ Fits season (194 days to spare)
Transplant: Mar 17 🍅 Harvest: May 12 – Jun 9

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 Santa Cruz County

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

Soil pH

Your soil pH (6.4–7.7) overlaps with Beets's range (6.0–7.5), though not a perfect match.

Soil Texture

The loam soil in Santa Cruz County is excellent for Beets — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (3.0%). Annual compost additions will help Beets.

How to Plant Beets

0.5"
Planting Depth
4"
Between Plants
12"
Between Rows

Fall planting: Sow 8 weeks before your first frost date for a fall harvest.

Succession Planting Beets

7
successive plantings in your 296-day season

Sow every 5.7 weeks. Last sowing by Sep 25 to harvest before frost.

For a dedicated fall crop, sow by Oct 09.

Plant Water Budget

Plant needs
0.8″/week
Rainfall provides
0.3″/week
You supply
0.7″/week
Watering frequency 1-2 times/week
Season total 1,717 gal / 100 sq ft
Drought risk

Water stress score is 8/10 — consider drought-tolerant varieties and mulching

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 3.6" 0" ❄️ Dormant
Feb 3.5" 4.2" 0" ✅ Rainfall sufficient
Mar 3.5" 2.8" 0.7" 💧 Light watering
Apr 3.5" 1.5" 2" 🚿 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" 0.2" 3.3" 🚿 Regular watering
Oct 3.5" 0.7" 2.8" 🚿 Regular watering
Nov 3.5" 1.6" 1.9" 🚿 Regular watering
Dec 3.5" 3" 0.5" 💧 Light watering

Water needs are for active growing months only (Feb–Dec in Santa Cruz 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 needs ~1,230 GDD — county provides 6,088 GDD Excellent fit

Beets Planting Timeline — Santa Cruz County, CA

Beets Planting Calendar

Activity When Date Range
Direct Sow January 21 Jan 21 – Feb 11
Harvest March 18 Mar 18 – Apr 15
Fall Sowing October 9 Oct 9 – Oct 23

Plant 0.5" deep · 4" apart · Rows 12" apart

Month-by-Month Timeline

MonthActivities
January Direct Sow
February Direct Sow
March Harvest
April Harvest
May
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: acceptable

🗺️ USDA Zone

Zone 9b

📆 Growing Season

296 days in Santa Cruz County

Growing Tips for Beets in Santa Cruz County

Direct sow Beets outdoors after February 11 in Santa Cruz County when soil has warmed and frost danger has passed.

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

  • Pole Beans
  • Mustard Greens

Check more plant combinations with our Companion Planting Checker →

🌾 Save Your Own Beets Seeds
Life Cycle Biennial
Pollination Wind Pollinated
How to Collect Replant roots for 2nd-year seeds. Rub stalks to free clusters.
Storage Store airtight; viable 6 years at 35°F, under 50% humidity.

Isolate 1/2 mile from Swiss chard — same species, they will cross.

Frequently Asked Questions

When should I plant Beets in Santa Cruz County, CA?

Santa Cruz County is in Zone 9b with an average last frost of February 11. Plan your Beets planting based on this frost date — see the calendar above for exact timing.

What planting zone is Santa Cruz County, CA?

Santa Cruz County, California is in USDA Hardiness Zone 9b. The average last spring frost is February 11 and first fall frost is December 4.

🌱

Your Santa Cruz County Garden Planner — Free

A 24-page printable planner built for Santa Cruz 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.

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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 Santa Cruz County, CA. Local conditions may vary. Last updated: May 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.