Bechtel 'Plena'
Malus ioensis
Bechtel 'Plena' (Malus ioensis) is a tree suited to the Colorado Front Range, rated "Not Recommended" on the 2024 Front Range Tree Recommendation List. It matures to about 15–25 ft tall and 15–25 ft wide, needs low to medium water, and prefers full sun. Fireblight susceptibility, choose disease-resistant cultivars.
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At a glance
- Rating
- Not Recommended
- Botanical name
- Malus ioensis
- Variety / cultivar
- Bechtel 'Plena'
- Type
- Tree
- Mature size
- 15–25 ft tall and 15–25 ft wide
- Mature form
- Rounded
- Spacing / clearance
- ~25 ft of clearance
- Hardiness zones
- USDA 4–8
- Growth rate
- Moderate
- Lifespan
- Medium
- Water needs
- low to medium water
- Sun
- Best in full sun.
- 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, white
- Bloom time
- mid spring, late spring
- Pollinator value
- high
Site factors to consider
- Critical: Insects & DiseasesMain pressure here is Fireblight and Cedar-apple rust, so keep it vigorous with steady water and a well-chosen site.
Wildlife & ecology
- Pollinator value
- high
- Deer
- Not deer-resistant
Common problems on the Front Range
- Fireblight (bacterial; worse in warm, wet springs)
- Cedar-apple rust
- Codling moth on fruiting types
These are general tendencies for this group of plants on the Front Range, not a diagnosis. Many are stress-driven and preventable with good siting and watering. For a specific plant or an active problem, consult a certified arborist or your local CSU Extension office.
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 Bechtel 'Plena' good for the Colorado Front Range?
- Yes, Bechtel 'Plena' is a well-suited tree for Colorado's Front Range, rated "Not Recommended" on the 2024 Front Range Tree Recommendation List.
- Why is Bechtel 'Plena' not recommended on the Front Range?
- The main catches here: Main pressure here is Fireblight and Cedar-apple rust, so keep it vigorous with steady water and a well-chosen site.
- How big does Bechtel 'Plena' get?
- It matures to about 15–25 ft tall and 15–25 ft wide.
- How much room does Bechtel 'Plena' need?
- Give Bechtel 'Plena' about 25 ft of clearance from buildings, fences, and other trees so the mature canopy isn't crowded.
- What shape does Bechtel 'Plena' grow into?
- Bechtel 'Plena' typically grows into a broad, rounded crown, the classic shade-tree silhouette. This is the species' usual mature form, named cultivars (columnar, weeping, or compact selections) can differ, so check the specific cultivar.
- Is Bechtel 'Plena' hardy on the Front Range?
- Bechtel 'Plena' is hardy in USDA 4–8. The Colorado Front Range spans roughly USDA 4b–6a, so it is well within range.
- How much water does Bechtel 'Plena' need?
- It needs low to medium water once established.
- How fast does Bechtel 'Plena' grow?
- Bechtel 'Plena' is a moderate-growing tree. Growth rate depends on water and site conditions on the Front Range.
- How long does Bechtel 'Plena' live?
- Bechtel 'Plena' has a moderate lifespan for a Front Range tree. Actual lifespan varies with site, water, and care.
- Is Bechtel 'Plena' safe for dogs?
- No. Bechtel 'Plena' is considered toxic to dogs. Keep pets away and check with your vet.
- Is Bechtel 'Plena' deer-resistant?
- No. Bechtel 'Plena' is not considered deer-resistant and may need protection where deer browse.
- Is Bechtel 'Plena' prone to pests or disease on the Front Range?
- Bechtel 'Plena' can be affected by fireblight (bacterial; worse in warm and other issues common to this group on the Front Range. These are general tendencies, not a diagnosis, many are stress-driven and preventable with good siting and watering. For a specific plant or an active problem, consult a certified arborist or CSU Extension.
