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When to Plant Salsify in Randall County, TX

Randall County, Texas Zone 7a May

Your May planting checklist for Randall County, Texas

May is a pivotal month for Randall County, Texas gardens. Focus on these tasks first and you'll set up the rest of the season for success.

Avg. last frost April 15
Avg. first frost October 24
Soil temp (4") 69°F
Watering High
Pest pressure Moderate
Daylight 13.8 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.

Randall County, Texas is in USDA Zone 7a. The average last spring frost is April 15 and the first fall frost is October 24, giving you a growing season of approximately 192 days.

At an elevation of 1,230 feet, Randall County receives approximately 57.2 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 95°F, so Salsify may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Salsify will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Salsify root diseases.

Randall County, TX (Zone 7a) Moderate season
192 days
Last Spring Frost April 15
192 growing days
First Fall Frost October 24
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Randall County Soil Profile

Soil Type

Sandy Loam

Soil pH

7.7-8.3

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (41 days to spare)
Transplant: Apr 13 🍅 Harvest: Jul 27 – Sep 7
Recommended (50%) ✓ Fits season (45 days to spare)
Transplant: Apr 15 🍅 Harvest: Jul 29 – Sep 9
Safe Start (90%) ✓ Fits season (43 days to spare)
Transplant: Apr 30 🍅 Harvest: Aug 13 – Sep 24

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 Randall County

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

Soil pH

Your soil pH (7.7–8.3) is more alkaline than Salsify prefers (6.0–7.5). Add sulfur or peat moss to lower pH.

Soil Texture

Sandy soil in Randall County warms quickly in spring but drains fast. Salsify will need more frequent watering and regular compost additions to retain nutrients.

Drainage

Drainage is adequate for Salsify.

Organic Matter

Organic matter is low (1.1%). Add 2-3 inches of compost before planting Salsify.

How to Plant Salsify

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

Fall planting: Sow 10 weeks before your first frost date for a fall harvest.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
1.3″/week
You supply
0.1″/week
Watering frequency Only during dry spells
Season total 100 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 4.3" 0" ❄️ Dormant
Feb 3.3" 0" ❄️ Dormant
Mar 3.2" 0" ❄️ Dormant
Apr 4.3" 1.7" 2.6" 🚿 Regular watering
May 4.3" 1.5" 2.8" 🚿 Regular watering
Jun 4.3" 2" 2.3" 🚿 Regular watering
Jul 4.3" 8.9" 0" ✅ Rainfall sufficient
Aug 4.3" 11.2" 0" ✅ Rainfall sufficient
Sep 4.3" 7.7" 0" ✅ Rainfall sufficient
Oct 4.3" 5.6" 0" ✅ Rainfall sufficient
Nov 3.3" 0" ❄️ Dormant
Dec 4.5" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Oct in Randall 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 4,080 GDD Excellent fit

Salsify Planting Timeline — Randall County, TX

Salsify Planting Calendar

Activity When Date Range
Direct Sow April 1 Apr 1 – Apr 22
Harvest July 15 Jul 15 – Aug 26
Fall Sowing August 15 Aug 15 – Aug 29

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

Month-by-Month Timeline

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

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Only during dry spells

📅 Days to Maturity

100–130 days

🧪 Soil pH

Needs 6–7.5 · Your soil: too_alkaline

🗺️ USDA Zone

Zone 7a

📆 Growing Season

192 days in Randall County

Growing Tips for Salsify in Randall County

Direct sow Salsify outdoors after April 15 in Randall County when soil has warmed and frost danger has passed.

Sandy soil in Randall County dries quickly — mulch Salsify with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

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 →

Frequently Asked Questions

When should I plant Salsify in Randall County, TX?

Randall County is in Zone 7a with an average last frost of April 15. Plan your Salsify planting based on this frost date — see the calendar above for exact timing.

What planting zone is Randall County, TX?

Randall County, Texas is in USDA Hardiness Zone 7a. The average last spring frost is April 15 and first fall frost is October 24.

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Your Randall County Garden Planner — Free

A 24-page printable planner built for Randall County (Zone 7a). 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 Randall County, TX. 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.