Zone 10 · Berries & Shrubs Growing Guide

When to Plant Blueberry
in Zone 10

The most popular edible shrub in the US. Long-lived (30+ years), beautiful ornamental, and incredibly productive once established. Soil pH is critical — must be acidic.

Plant outdoors
Jan 1 – Feb 1
Start indoors
Direct sow
Last Frost
~Jan 15
Days to harvest
2–3 years to first harvest
Difficulty
Medium
Ready to harvest — Zone 10
Harvest window: Feb – May

Planting Calendar

In Zone 10, Blueberry should be planted outdoors Jan 1 – Feb 1, after the average last frost date of approximately Jan 15.

Very low-chill varieties needed. Sunshine Blue is most reliable. Limited selection for Zone 10.

Care Guide

Sunlight
Full sun · 6–8 hrs/day
Watering
Regular
Spacing
48–72 inches
Soil
Acidic, well-draining, peaty
Days to maturity
2–3 years to first harvest
Soil pH
4.5–5.5
plant tip · Zone 10

Very low-chill varieties needed. Sunshine Blue is most reliable. Limited selection for Zone 10.

Feeding Schedule

How often
twice a year
Feed type
acidic/ericaceous fertilizer
Key timing
early spring and after fruiting

Blueberries need acidic soil and specialist ericaceous fertilizer. Never use general fertilizers — they alter pH and damage plants.

Companion Planting for Blueberry

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

Grows well with
  • Azaleas
  • Rhododendrons
  • Pine mulch
  • Strawberries
Keep away from
  • Brassicas
  • Tomatoes
  • Potatoes

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 Blueberry

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 10, direct sow blueberry outdoors Jan 1 – Feb 1 after your last frost date of approximately Jan 15. Very low-chill varieties needed. Sunshine Blue is most reliable. Limited selection for Zone 10.
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 blueberry include Azaleas, Rhododendrons, Pine mulch, Strawberries. Avoid planting near Brassicas, Tomatoes, Potatoes, which can compete for nutrients or attract pests.
Blueberry typically takes 2–3 years to first harvest from transplant or direct sow to harvest in Zone 10. Expected harvest window: Feb – May.

Free app · iOS February 2028

Track your Blueberry 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.

Blueberry in other zones
Trees & Shrubs