'La Jolla' Bougainvillea
'La Jolla' Bougainvillea
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Plant Type: shrub
Plant Height: 8–12 feet (with support)
Spread: 6–8 feet
Flower Color: deep magenta-red (bracts)
Sun Exposure: Full sun
Bougainvillea ‘La Jolla’: Rich Magenta-Red Blooms for a Compact, Colorful Display
Bougainvillea ‘La Jolla’ is a vibrant, more compact bougainvillea variety prized for its deep magenta-red bracts that bloom heavily through the warm months. Its moderate size, controlled growth habit, and intense color make it a versatile choice for smaller gardens, courtyards, and patio containers while still delivering the dramatic bougainvillea look.
Key Features of Bougainvillea ‘La Jolla’
- Brilliant, Long-Lasting Color: Dense clusters of magenta-red bracts provide months of vivid color.
- Compact Growth: More restrained in size than other bougainvillea varieties, making it easier to manage in smaller spaces.
- Heat & Drought Tolerant: Thrives in Arizona’s sun and heat with minimal water once established.
- Versatile Habit: Can be grown as a climbing vine, trimmed into a shrub, or used in large containers.
Growing and Care Tips
‘La Jolla’ offers the same toughness as larger bougainvilleas but with a growth habit that’s easier to control.
Soil: Requires well-draining soil; sandy or loamy mixes preferred.
Water: Water regularly during establishment; once mature, water less frequently to encourage blooming.
Fertilizer: Use a low-nitrogen fertilizer in spring and midsummer to promote flowers over foliage.
Pruning: Light pruning after each bloom cycle will help maintain shape and stimulate new flowering growth.
Landscaping Uses
- Small-Space Climber: Perfect for training up smaller trellises, fences, or arbors.
- Hedge or Border: Makes a vibrant low hedge or flowering border when pruned regularly.
- Container Planting: Excellent choice for large pots in sunny patios or poolside areas.
- Accent Plant: Adds an intense color statement in mixed landscape designs.
Summary
Bougainvillea ‘La Jolla’ is the perfect choice for those who love bougainvillea’s bold color but want a more compact, manageable plant. With its heat tolerance, drought resistance, and long bloom season, it’s ideal for Arizona landscapes and container gardens.
Three Timbers Installation Guide (Feel Free to Follow): Bougainvillea ‘La Jolla’
Planting Guide:
Location: Full sun is essential for maximum bloom production.
Soil: Must be well-draining; amend clay soils with sand or grit.
Spacing: Space 6–8 feet apart for hedging or along fences.
Planting Depth: Plant root crown level with surrounding soil.
Support: Provide a trellis or structure for climbing, or prune regularly for shrub form.
Watering Guide:
Watering After Planting:
- Initial Watering: Water deeply at planting to saturate roots.
- Frequency: Every 3–4 days for the first 2–3 weeks.
- Watering Amount: Apply 1–2 inches of water per session.
When is the Plant Established?
- Typically established after 3–4 months of consistent watering and strong new growth.
Watering Once Established:
- Summer: Water every 10–14 days; allow soil to dry between waterings.
- Winter: Water every 4–6 weeks if dry.
Drip Irrigation Setup:
Placement of Emitters: Place 1–2 emitters 12–18 inches from the base.
Flow Rate: Use 1-gallon-per-hour emitters.
Number of Emitters: One for young plants; two for mature plants.
Adjusting Frequency: Increase watering slightly during extreme summer heat; reduce in cooler months.
General Watering Tips for Bougainvillea ‘La Jolla’:
- Soil Check: Let the top 2–3 inches dry before watering again.
- Avoid Overwatering: Too much water reduces blooming and increases leafy growth.
- Mulch: Apply a thin layer of gravel mulch to conserve moisture but keep it away from the crown.
How Many ‘La Jolla’ Bougainvillea Do I Need?
‘La Jolla’ spreads about 6 to 8 feet, so space plants roughly 6 feet apart for a continuous flowering screen along a fence or wall. Use this table to estimate plant count by run length:
| Run Length | Plants Needed (6 ft spacing) |
|---|---|
| 12 ft | 2 to 3 |
| 24 ft | 4 to 5 |
| 36 ft | 6 to 7 |
| 48 ft | 8 to 9 |
For a single trellis, arbor, or patio container, one well-placed plant is plenty: it will fill the structure once established.
‘La Jolla’ Bougainvillea Season-by-Season in Phoenix
- Spring (Feb to Apr): New growth flushes as nights warm; the first heavy wave of magenta-red bracts begins. A great second planting window once frost risk passes.
- Summer (May to Sep): Peak performance. Loves full sun and reflected heat off walls and pavement, and color intensifies as you ease back on water. Monsoon humidity and warmth keep the bloom cycles coming.
- Fall (Oct to Nov): Prime planting season and often a strong second flush of color before nights cool.
- Winter (Dec to Jan): Blooming slows and the plant may drop leaves and bracts. ‘La Jolla’ is frost-sensitive: expect tip damage below about 32°F. Cover young plants on hard frost nights and hold off on heavy pruning until spring.
At a Glance
✔ Heat-Loving (Reflected-Heat Tolerant) ✔ Drought-Tolerant ✔ Pollinator-Friendly ✔ Low-Maintenance
Plant It With
- Texas Sage: silvery foliage and purple blooms that cool down the bougainvillea's hot magenta.
- Red Yucca: airy coral flower spikes and a clean architectural form at the base.
- Desert Spoon: a spiky silver-green focal point that contrasts the soft bract clusters.
- Purple Hopseed Bush: an upright evergreen backdrop that frames the color.
Is ‘La Jolla’ Bougainvillea Right for Your Yard?
Yes if you have a hot, full-sun spot with well-draining soil (break up caliche at planting), a fence, trellis, or wall to climb, and you want months of bold color on very little water. It thrives on reflected heat that scorches other plants. Not a fit if your site is shaded, stays soggy, sits in a frost pocket where temperatures regularly drop below freezing, or borders a pool where dropped bracts would mean constant cleanup.
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