Zone 9 · Herbs Growing Guide

When to Plant Dill
in Zone 9

Fast, feathery, and self-seeding. Plant once and you'll have it forever — it reseeds prolifically. Harvest young leaves for flavour; let some plants set seed for pickling.

Plant outdoors
Sep – Mar
Start indoors
Direct sow
Last Frost
~Jan 31
Days to harvest
40–60 days
Difficulty
Easy
Ready to harvest — Zone 9
Harvest window: Oct – Apr

Planting Calendar

In Zone 9, Dill should be planted outdoors Sep – Mar, after the average last frost date of approximately Jan 31.

Fall through spring crop. Summer heat bolts dill immediately.

Care Guide

Sunlight
Full sun · 6–8 hrs/day
Watering
Moderate
Spacing
9–12 inches
Soil
Well-draining, slightly sandy
Days to maturity
40–60 days
Soil pH
5.8–6.5
plant tip · Zone 9

Fall through spring crop. Summer heat bolts dill immediately.

Feeding Schedule

How often
once at planting
Feed type
balanced (10-10-10)
Key timing
at planting

Light feeder. A single balanced feed at planting is sufficient. Over-feeding reduces aromatic oils.

Succession Planting

Sow every 3 weeks

Sow every 3 weeks from spring through midsummer. Dill bolts quickly — succession keeps leaves coming. If you want seeds (for pickling), let one sowing go to flower.

Companion Planting for Dill

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

Grows well with
  • Brassicas
  • Lettuce
  • Cucumbers
Keep away from
  • Carrots
  • Fennel
  • Tomatoes
  • Cilantro

These guides get better when growers like you contribute. If something’s wrong or you’ve learned something worth sharing, we’d love to hear it.

What needs correcting?

What should it say?

Your zone (optional)

Thanks — we'll review this and update the guide if needed.

Your growing tip for Dill

Your name (optional)

Your zone (optional)

Tips are reviewed before publishing. Accepted tips earn you a Founding Grower badge when the plant app launches.

Thanks for contributing! We'll review your tip and be in touch before launch.

Common questions

In Zone 9, dill is a fall-planted crop. Plant outdoors Sep – Mar 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 9 has an average last spring frost of approximately Jan 31 and a first fall frost around Dec 15. 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 dill include Brassicas, Lettuce, Cucumbers. Avoid planting near Carrots, Fennel, Tomatoes, Cilantro, which can compete for nutrients or attract pests.
Dill typically takes 40–60 days from transplant or direct sow to harvest in Zone 9. Expected harvest window: Oct – Apr.

Free app · iOS February 2028

Track your Dill in plant

Get a live traffic light for every crop in your garden — zone-aware planting calendar, real-time weather alerts, and a community of growers near you.

Be first to back on Kickstarter and lock in the founding price.

Dill in other zones
Crop Guides