Crimson Bottlebrush Care
Callistemon citrinus
An evergreen shrub of Australian origin whose bottlebrush-like red flowers attract bees and birds. It loves heat and drought; it tolerates light frosts.
Monthly care calendar
Timings are for a temperate Northern Hemisphere climate. In warmer areas tasks start earlier, in colder areas later; in the Southern Hemisphere shift them by six months.
- Frost risk: In hard and prolonged frosts, cover the root zone with mulch or dry leaves; also protect young plants. It is damaged below about -6 °C.
- Frost risk: In hard and prolonged frosts, cover the root zone with mulch or dry leaves; also protect young plants. It is damaged below about -6 °C.
- Watering: Water a newly planted specimen more often than established plants during its first year, as its root system is still shallow.
- Fertilizing: Apply a balanced fertilizer or well-rotted organic fertilizer once when it wakes from dormancy. It loves acidic soil; if interveinal yellowing (chlorosis) appears on the leaves in limy soil, prefer an acidic fertilizer.
- Plant protection: If symptoms spread and treatment is needed, consult a licensed plant-protection supplier or an agronomist. Plant protection products are regulated; follow local rules.
- General care: Good time for planting and transplanting.
- Pests & diseases: Check the branches and trunk for brown, fixed bumps (scale insects).
- Watering: If there is no rainfall, water every 15 days. Water newly planted plants more often than established plants during the first year; the root system is still shallow.
- General care: Suitable period for planting and transplanting. Flowering begins.
- Watering: If there is no rainfall, water once a week.
- Plant protection: If symptoms spread and treatment is needed, consult a licensed plant-protection supplier or an agronomist. Plant protection products are regulated; follow local rules.
- General care: Flowering continues. Spread mulch 5-7 cm thick over the root zone; it conserves soil moisture and suppresses weeds. Do not pile mulch against the trunk.
- Pests & diseases: Check the branches and trunk for brown, fixed bumps (scale insects).
- Watering: Water deeply twice a week; prefer infrequent and generous watering over small and frequent. Water around the roots to a depth of 15-20 cm.
- General care: Flowering continues.
- Watering: Water deeply twice a week; prefer infrequent and generous watering over small and frequent. Water around the roots to a depth of 15-20 cm.
- Watering: Water deeply twice a week; prefer infrequent and generous watering over small and frequent. Water around the roots to a depth of 15-20 cm.
- Watering: If there is no rainfall, water once a week.
- General care: Flowering continues.
- Watering: If there is no rainfall, water every 15 days. Water newly planted plants more often than established plants during the first year; the root system is still shallow.
- Pruning: Prune as soon as flowering ends. Next year's flower buds form over the summer; late pruning reduces flowering. When the flowers fade, cut just below the flower spikes; new shoots rarely form from leafless old wood.
- General care: Good time for planting and transplanting.
- General care: Evergreen leaves continue to lose water in winter. Water thoroughly once before the soil freezes.
- Frost risk: In hard and prolonged frosts, cover the root zone with mulch or dry leaves; also protect young plants. It is damaged below about -6 °C.
The care advice on this page is general and for information only; it is not professional advice. Plant age, soil and your garden’s microclimate can change the outcome. Plant protection products are mentioned only as general information; they are regulated, and the choice, dose and timing must be decided by a qualified professional under local rules. Consult a landscape architect or agronomist before applying.
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