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When to plant Salsify in Davis, CA

For Davis, gardeners: plant Salsify January 19 through February 9 once soil reads 50°F. A second sowing from October 8 to October 22 extends the harvest into fall.

When to Plant Salsify in Davis, CA

Yolo County, California Zone 9b July

July in the garden — Yolo County, California

Welcome to July in Zone 9b. These are the moves that will have the biggest impact on your growing season.

Avg. last frost February 9
Avg. first frost December 3
Soil temp (4") 93°F
Watering Critical
Pest pressure High
Daylight 14.5 hrs

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Salsify is a root vegetable with a subtle oyster-like flavor, earning it the nickname "oyster plant." It produces long, slender, cream-colored roots.

Davis, California is in USDA Zone 9b. The average last spring frost is February 9 and the first fall frost is December 3, giving you a growing season of approximately 297 days.

At an elevation of 163 feet, Yolo County receives approximately 27.7 inches of rainfall annually with predominantly loam soil. Summer highs average 95°F, so Salsify may need afternoon shade and extra watering during peak heat.

Davis, CA (Zone 9b) Year-round
297 days
Last Spring Frost February 9
297 growing days
First Fall Frost December 3

Davis Soil Profile

Soil Type

Loam

Soil pH

6.7-7.8

Drainage

Well Drained

Salsify Planting Risk Windows

Early Start (70% safe) ✓ Fits season (158 days to spare)
Transplant: Jan 25 🍅 Harvest: May 10 – Jun 21
Recommended (50%) ✓ Fits season (150 days to spare)
Transplant: Feb 9 🍅 Harvest: May 25 – Jul 6
Safe Start (90%) ✓ Fits season (134 days to spare)
Transplant: Mar 13 🍅 Harvest: Jun 26 – Aug 7

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 Davis

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

Soil pH

Your soil pH (6.7–7.8) overlaps with Salsify's range (6.0–7.5), though not a perfect match.

Soil Texture

The loam soil in Yolo County is excellent for Salsify — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (2.4%). Annual compost additions will help Salsify.

How to Plant Salsify

0.5"
Planting Depth
6"
Between Plants
12"
Between Rows

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

Salsify Water Budget

Plant needs
1.0″/week
Rainfall provides
0.4″/week
You supply
0.7″/week
Watering frequency 2-3 times/week
Season total 1,940 gal / 100 sq ft
Drought risk

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

Monthly Watering Guide for Salsify

Salsify needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Salsify Needs Rainfall You Supplement Action
Jan 6" 0" ❄️ Dormant
Feb 4.3" 5.4" 0" ✅ Rainfall sufficient
Mar 4.3" 4" 0.3" 💧 Light watering
Apr 4.3" 2.3" 2" 💧 Light watering
May 4.3" 0.8" 3.5" 🚿 Regular watering
Jun 4.3" 0.1" 4.2" 🚿 Regular watering
Jul 4.3" 0" 4.3" 🚿 Regular watering
Aug 4.3" 0" 4.3" 🚿 Regular watering
Sep 4.3" 0.3" 4" 🚿 Regular watering
Oct 4.3" 1.1" 3.2" 🚿 Regular watering
Nov 4.3" 2.6" 1.7" 💧 Light watering
Dec 4.3" 5.1" 0" ✅ Rainfall sufficient

Water needs are for active growing months only (Feb–Dec in Yolo County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Salsify 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.

Salsify needs ~2,444 GDD — county provides 6,332 GDD Excellent fit

Salsify Planting Timeline — Davis, CA

Salsify Planting Calendar

Activity When Date Range
Direct Sow January 19 Jan 19 – Feb 9
Harvest May 4 May 4 – Jun 15
Fall Sowing October 8 Oct 8 – Oct 22

Plant 0.5" deep · 6" apart · Rows 12" apart

Month-by-Month Timeline

MonthActivities
January Direct Sow
February Direct Sow
March
April
May Harvest
June Harvest
July
August
September
October Fall Sowing
November
December

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · 2-3 times/week

📅 Days to Maturity

100–130 days

🧪 Soil pH

Needs 6–7.5 · Your soil: acceptable

🗺️ USDA Zone

Zone 9b

📆 Growing Season

297 days in Yolo County

Growing Tips for Salsify in Davis

Direct sow Salsify outdoors after February 09 in Yolo County when soil has warmed and frost danger has passed.

Common pests for Salsify in this region include aphids and slugs. Use row covers early in the season and inspect plants weekly.

General growing tips

Direct sow in spring in deeply worked, stone-free soil. Use fresh seed only as viability drops quickly. Harvest in late fall after frost for best flavor.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

When should I plant Salsify in Davis, CA?

In Davis, CA, plant Salsify after the last frost (around February 9) and before the first frost (around December 3). Best results when soil holds above 50°F.

What growing zone is Davis, CA for Salsify?

Davis sits in USDA Zone 9b. Salsify grows reliably in zones 3a through 9b, so it's a good fit here.

Can Salsify grow in Davis's climate?

Yes — Salsify grows well in Davis's temperate climate. Davis averages a 298-day frost-free season, with last frost around February 9 and first frost around December 3.

🌱

Your Yolo County Garden Planner — Free

A 22-page printable planner built for Yolo 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 Yolo County, CA. Local conditions may vary. Last updated: July 2026.