Globe Locust Care
Robinia pseudoacacia 'Umbraculifera'
A grafted acacia form with a round, umbrella-shaped crown used as a street and park tree. It does not flower and is tolerant of drought and polluted air.
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.
- Watering: Water a newly planted specimen more often than established plants during its first year, as its root system is still shallow.
- Pruning: While dormant, remove dry, broken, crossing and inward-growing branches so that air and light reach the inside of the crown. Remove thorny shoots growing from below the graft union at the base whenever you see them; balance the crown at the end of winter every 2-3 years.
- General care: Good time for planting and transplanting.
- Watering: Water a newly planted specimen more often than established plants during its first year, as its root system is still shallow.
- General care: Good time for planting and transplanting.
- 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.
- Pests & diseases: Look for aphids (green or black clusters of small insects) on fresh shoot tips. If there are only a few, you can knock them off with a strong jet of water.
- 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.
- Pests & diseases: Look for aphids (green or black clusters of small insects) on fresh shoot tips. If there are only a few, you can knock them off with a strong jet of water.
- Watering: In a long drought, water deeply once a month.
- 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.
- Pests & diseases: Look for aphids (green or black clusters of small insects) on fresh shoot tips. If there are only a few, you can knock them off with a strong jet of water.
- Watering: In midsummer, deep watering every 15-20 days is enough. Established plants (over 2 years old) do not need watering in most years. The root zone should be wetted to a depth of 30-40 cm.
- Watering: In midsummer, deep watering every 15-20 days is enough. Established plants (over 2 years old) do not need watering in most years. The root zone should be wetted to a depth of 30-40 cm.
- Watering: In a long drought, water deeply once a month.
- Watering: Water a newly planted specimen more often than established plants during its first year, as its root system is still shallow.
- General care: Good time for planting and transplanting. Collect fallen leaves; many disease agents and pests overwinter under them.
- Watering: Water a newly planted specimen more often than established plants during its first year, as its root system is still shallow.
- General care: Good time for planting and transplanting.
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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