How-to Guide
Growing Flowering Crabapple (Malus spp.)
The short answer
Flowering crabapples (Malus spp.) are adaptable trees that prefer full sun and moist, well-drained soil. Choosing a disease-resistant cultivar is the single most important decision, since it prevents most apple scab and other foliage disease problems.
Avoid planting in high-maintenance turf, where excess water and fertilizer increase disease; a mulched bed with drip or hose-end watering that keeps leaves dry is better. Do not plant too deeply, which encourages suckering.
Choosing a variety and site
Disease resistance should be your first consideration; many resistant cultivars are widely available, though some susceptible ones are still sold.
- Light: full sun
- Soil: adaptable but must be well-drained; moist is ideal
- Best sited in mulched beds, not high-input turfgrass
- Water at the base to keep foliage dry and reduce scab
Planting
- 1Don't plant deep — Planting too deeply increases suckering; set the tree at the depth it grew in the nursery.
- 2Mulch — Use a mulched bed rather than lawn to moderate water and fertilizer exposure.
Pruning basics and timing
Prune in late winter to early spring before leafing, or right after bloom, and finish by about June 1, since flower buds for the next spring form in June and July.
- Remove basal suckers and water sprouts each season, cut close to the ground
- Thin branches so air moves through and dries the leaves
- Disinfect tools between cuts to avoid spreading disease
Sources
Reviewed 2026-07-18. We cite university Extension, government, and established horticultural sources — and never invent pesticide rates or dangerous treatments.
- Colorado State University Extension — Flowering Crabapple Trees — Full sun and well-drained soil, disease-resistant cultivar selection, avoid turf, don't plant too deep, pruning timing and sucker/water-sprout removal.
- UMN Extension — Apple scab of apples and crabapples — Planting disease-resistant varieties is the best practice for apple scab control.