Crabapple — Louisa
Malus 'Louisa'
Crabapple — Louisa (Malus 'Louisa') is a tree suited to the Colorado Front Range, rated "Recommended for Most Sites" on the 2024 Front Range Tree Recommendation List. It matures to about 12–15 ft tall and 12–15 ft wide, and needs low to medium water. Weeping form.
low to medium water12–15 ft tall and 12–15 ft wideXeric / water-wiseToxic to dogs
Photos



At a glance
- Rating
- Recommended for Most Sites
- Botanical name
- Malus 'Louisa'
- Variety / cultivar
- Louisa
- Type
- Tree
- Mature size
- 12–15 ft tall and 12–15 ft wide
- Water needs
- low to medium water
- Colorado native
- No
- Foliage
- Deciduous
- Soil
- clay, loam, sandy
- Soil pH
- 6.0–8.2
- Hail tolerance
- moderate
- Wind tolerance
- moderate
- Salt tolerance
- moderate
- Bloom color
- pink
- Bloom time
- mid spring, late spring
Site factors to consider
- Critical: Cold Hardiness
Planting & establishment
Water deeply every 7–10 days through the first 2 summers. Winter water 1–2×/month October–March when soil is dry and unfrozen — winter desiccation is a top killer of newly-planted trees. Year 3: taper to 2×/month in summer, then rely on natural precipitation.
Frequently asked questions
- Is Crabapple — Louisa good for the Colorado Front Range?
- Yes. Crabapple — Louisa is included in the Front Range Plant Finder as a tree suited to Colorado's Front Range, rated "Recommended for Most Sites" on the 2024 Front Range Tree Recommendation List.
- How big does Crabapple — Louisa get?
- It matures to about 12–15 ft tall and 12–15 ft wide.
- How much water does Crabapple — Louisa need?
- It needs low to medium water once established.
- Is Crabapple — Louisa safe for dogs?
- No — Crabapple — Louisa is considered toxic to dogs. Keep pets away and check with your vet.