Camellia care guide: when & how to prune, fertilize and spray
Camellia japonica / C. sasanqua · USDA zones 7–10
Glossy evergreen shrubs flowering from fall (sasanqua) through late winter (japonica). Prune lightly right after flowering, feed with acid fertilizer, and watch for tea scale.
☀️ Sun
Morning sun and afternoon shade.
💧 Water
Even moisture, especially while buds form in late summer. Dry soil then causes bud drop.
🪱 Soil
pH 5.5–6.5. Rich, acidic, well-drained. Pine bark fines and compost. Plant slightly high.
How and when to prune camellia
Prune right after flowering
When: from 2 weeks before to 4 weeks after the last spring frost.
- zones 6–7: about Apr 1 – May 13
- zones 8–10: about Feb 11 – Mar 25
This shrub sets next year's flower buds over the summer. Pruning within a few weeks after the flowers fade gives the most blooms next year. Prune later and you cut off the buds.
- Wait until the last flowers have faded.
- Remove dead, damaged and crossing branches first.
- Renewal-prune: cut one-third of the oldest, thickest stems right down to the ground. Over three years this replaces the whole shrub with vigorous young wood.
- Shorten overly long stems to an outward-facing bud or side branch to shape the shrub. Avoid shearing it into a ball.
- Camellias don't need much: thin the interior for airflow and shorten wayward shoots.
Tools: Bypass pruners
Fertilizing camellia
Spring feeding
When: 2–6 weeks after the last spring frost.
- zones 6–7: about Apr 29 – May 27
- zones 8–10: about Mar 11 – Apr 8
A single spring feeding as growth starts covers most shrubs for the year.
- Scatter fertilizer at the label rate from near the stems out past the drip line, where the feeder roots are.
- Water it in thoroughly.
What to use: 🌿 Organic acid-loving plant food (e.g. Espoma Holly-tone 4-3-4) · Acid-forming fertilizer (e.g. Miracid 30-10-10 or ammonium sulfate)
Spraying & disease prevention for camellia
Oil spray for tea scale
When: 2–5 weeks after the last spring frost.
- zones 6–7: about Apr 29 – May 20
- zones 8–10: about Mar 11 – Apr 1
Tea scale is the most common camellia pest. Oil smothers the crawlers.
- Spray horticultural oil (summer rate) on the leaf undersides on a mild day below 85°F/29°C.
What to use: 🌿 Horticultural / dormant oil (e.g. Bonide All Seasons Oil)
Soil, compost & mulch for camellia
Refresh mulch
When: 2–6 weeks after the last spring frost.
- zones 6–7: about Apr 29 – May 27
- zones 8–10: about Mar 11 – Apr 8
Mulch keeps roots cool and moist, suppresses weeds and slowly feeds the soil. Applying it after the soil warms lets roots wake up first.
- Spread 2–3 in (5–7 cm) of mulch over the root zone.
- Keep mulch 2–3 in (5–7 cm) away from stems and trunks. Mulch piled against bark invites rot and rodents.
- Don't go deeper than 3 in (7 cm) in total. Too much mulch suffocates roots.
What to use: 🌿 Pine straw or pine bark fines (slightly acidifying) · 🌿 Shredded hardwood or pine bark mulch
Common camellia problems and how to fix them
Tea scale
Signs: White, cottony specks on leaf undersides; yellow blotches on top.
What to do: Horticultural oil spray in spring after bloom and again in fall, covering the leaf undersides.
Bud drop
Signs: Buds fall before opening.
What to do: Caused by irregular watering in late summer and fall, or a hard freeze.
Camellia care FAQ
When should I prune camellia?
Prune right after flowering: from 2 weeks before to 4 weeks after the last spring frost (around Apr 1 – May 13 in zones 6–7). Glossy evergreen shrubs flowering from fall (sasanqua) through late winter (japonica). Prune lightly right after flowering, feed with acid fertilizer, and watch for tea scale.
What is the best fertilizer for camellia?
A single spring feeding as growth starts covers most shrubs for the year. Good options: Organic acid-loving plant food (e.g. Espoma Holly-tone 4-3-4); Acid-forming fertilizer (e.g. Miracid 30-10-10 or ammonium sulfate).
What should I spray on camellia?
Oil spray for tea scale (2–5 weeks after the last spring frost). Products: Horticultural / dormant oil (e.g. Bonide All Seasons Oil). Always follow the label.
What soil does camellia need?
Rich, acidic, well-drained. Preferred pH 5.5–6.5. Pine bark fines and compost. Plant slightly high.
How much sun and water does camellia need?
Sun: Morning sun and afternoon shade. Water: Even moisture, especially while buds form in late summer. Dry soil then causes bud drop.
What are common camellia problems?
Tea scale: White, cottony specks on leaf undersides; yellow blotches on top. Horticultural oil spray in spring after bloom and again in fall, covering the leaf undersides. Bud drop: Buds fall before opening. Caused by irregular watering in late summer and fall, or a hard freeze.
More evergreens care guides
Timings are given relative to your average frost dates, with examples for typical US climates. Always read and follow product labels.