Zone 10 · Herbs Growing Guide

When to Plant Parsley
in Zone 10

Slow to germinate (3–4 weeks) but then productive for months. Soaking seeds overnight speeds germination. Biennial — grows leaves first year, flowers second.

Plant outdoors
Sep – Feb
Start indoors
Direct sow
Last Frost
~Jan 15
Days to harvest
70–90 days
Difficulty
Medium
Ready to harvest — Zone 10
Harvest window: Oct – Apr

Planting Calendar

In Zone 10, Parsley should be planted outdoors Sep – Feb, after the average last frost date of approximately Jan 15.

Cool season focus. Keep well-watered in fall and spring.

Care Guide

Sunlight
Full sun to partial shade · 4–8 hrs/day
Watering
Regular
Spacing
8–10 inches
Soil
Rich, well-draining, moist
Days to maturity
70–90 days
Soil pH
5.5–6.7
plant tip · Zone 10

Cool season focus. Keep well-watered in fall and spring.

Feeding Schedule

How often
monthly
Feed type
balanced (10-10-10)
Key timing
throughout growing season

Biennial — feeds moderately. Monthly balanced feed. Avoid high nitrogen which reduces flavour intensity.

Succession Planting

Sow every 4 weeks

Sow a second batch 4 weeks after the first. Parsley is slow to germinate and biennial — a second sowing gives you backup in case of poor germination and fresh young plants mid-season.

Companion Planting for Parsley

What you plant next to parsley makes a real difference — some plants actively help, others compete or attract pests.

Grows well with
  • Tomatoes
  • Asparagus
  • Corn
  • Roses
Keep away from
  • Alliums
  • Lettuce

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Common questions

In Zone 10, parsley is a fall-planted crop. Plant outdoors Sep – Feb once temperatures cool in autumn. It overwinters and is ready to harvest around Oct – Apr. No last frost consideration — plant before the ground freezes.
Zone 10 has an average last spring frost of approximately Jan 15 and a first fall frost around Dec 31. These dates vary by specific location — use your ZIP code in the plant app for precision based on the nearest NOAA weather station.
Good companion crops for parsley include Tomatoes, Asparagus, Corn, Roses. Avoid planting near Alliums, Lettuce, which can compete for nutrients or attract pests.
Parsley typically takes 70–90 days from transplant or direct sow to harvest in Zone 10. Expected harvest window: Oct – Apr.

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Parsley in other zones
Crop Guides