Oak (REGAL PRINCE®)
Quercus robur x bicolor
Oak (REGAL PRINCE®) (Quercus robur x bicolor) 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 40–50 ft tall and 12–20 ft wide, slow-growing, needs low to medium water, and prefers full sun. KINDRED SPIRIT® most narrow columnar oak.
Photos
- Photo 1: Joshnadler, no known copyright restrictions (public domain)
- Photo 2: (c) Andrew Conboy, some rights reserved (CC BY), uploaded by Andrew Conboy
At a glance
Will it survive here?
- Hardiness zones
- USDA 4–8
- Water needs
- low to medium water
- Sun
- Best in full sun.
- Soil
- clay, loam, sandy
- Soil pH
- 6.0–8.2
- Hail tolerance
- moderate
- Wind tolerance
- moderate
- Salt tolerance
- moderate
How big, what shape?
- Mature size
- 40–50 ft tall and 12–20 ft wide
- Mature form
- Rounded
- Spacing / clearance
- ~20 ft of clearance
- Growth rate
- Slow
- Lifespan
- Long-lived
What it looks like, and when
- Fall color
- Bronze, red
- Foliage
- Deciduous
Who else benefits
- Pollinator value
- low
- Deer
- Not deer-resistant
- Colorado native
- No
Common problems on the Front Range
No major pest or disease problems are commonly reported for this plant on the Front Range. Keep it well sited and watered, and watch for the usual stress-driven issues in drought or heat.
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 Oak (REGAL PRINCE®) good for the Colorado Front Range?
- Yes, Oak (REGAL PRINCE®) is a well-suited tree for Colorado's Front Range, rated "Recommended for Most Sites" on the 2024 Front Range Tree Recommendation List.
- How big does Oak (REGAL PRINCE®) get?
- It matures to about 40–50 ft tall and 12–20 ft wide.
- How much room does Oak (REGAL PRINCE®) need?
- Give Oak (REGAL PRINCE®) about 20 ft of clearance from buildings, fences, and other trees so the mature canopy isn't crowded.
- What shape does Oak (REGAL PRINCE®) grow into?
- Oak (REGAL PRINCE®) 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 Oak (REGAL PRINCE®) hardy on the Front Range?
- Oak (REGAL PRINCE®) 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 Oak (REGAL PRINCE®) need?
- It needs low to medium water once established.
- How fast does Oak (REGAL PRINCE®) grow?
- Oak (REGAL PRINCE®) is a slow-growing tree. Growth rate depends on water and site conditions on the Front Range.
- How long does Oak (REGAL PRINCE®) live?
- Oak (REGAL PRINCE®) is long-lived, a multi-generational tree given good siting and care. Actual lifespan varies with site, water, and care.
- What color does Oak (REGAL PRINCE®) turn in fall?
- Oak (REGAL PRINCE®) turns bronze and red in autumn. Fall color intensity varies with the season and site on the Front Range.
- Is Oak (REGAL PRINCE®) native to Colorado?
- No. It is not a Colorado native, but it grows well on the Front Range.
- Is Oak (REGAL PRINCE®) deer-resistant?
- No. Oak (REGAL PRINCE®) is not considered deer-resistant and may need protection where deer browse.
- Is Oak (REGAL PRINCE®) prone to pests or disease on the Front Range?
- Oak (REGAL PRINCE®) has no major pest or disease problems commonly reported on the Front Range. Keep it well sited and watered, and watch for stress-driven issues in drought or heat.
