UCCE Orange County Master Gardeners
University of California
UCCE Orange County Master Gardeners

Edible Plants


Peaches, year-round care

peach
Peaches in the backyard garden need some care all year round.
Listed below are activities for each season.






Winter Dormant Season

• Spray trees with dormant oil to control San Jose scale
Read more about San Jose scale
• Spray fixed copper to control peach leaf curl December 1st and February 1st
Read more about peach leaf curl
• Prune out 50% of last year’s wood to thin the crop, insure good shoot growth and fruiting potential for future years

Spring Bloom Season
• Apply fungicide during bloom to prevent brown rot, which may require 1–3 sprays, depending on weather. Rainy periods require more spray
Read more about brown rot
• Fertilize young trees monthly with high nitrogen fertilizer beginning April 1st. Use one-half pound urea or 25 pounds manure per application per tree. Mature trees need 50% more. Water fertilizer in. If drip irrigated, do not exceed 1 ounce urea per emitter per month
• Thin fruits when marble-sized to about 6 inches apart. Thinning reduces fruit numbers, but increases size and prevents limb breakage

Summer Growing Season
• Fertilize young trees monthly. Use one-half pound urea or 25 pounds manure per application per tree. Mature trees need 50% more. Water fertilizer in. If drip irrigated, do not exceed 1 ounce urea per emitter per month
• Drip irrigate daily or sprinkler irrigate about every 3 weeks
• Maintain a weed free area around the base of the trees within 3 feet of the trunk with an organic mulch 3–4 inches deep

Fall Harvest Season
• Spray for shot hole fungus in November before first heavy rain; use fixed copper
Read more about shot hole fungus
• Fertilize and irrigate just after harvest
• At leaf fall, remove and destroy or compost leaves to prevent the spread of peach scab
• Remove mummies from tree


Read more about the calendar of activities for peaches.  

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