Bottle Brush
Bottlebrush
Callistemon rigidus
This once widely used, large shrub (10-15 feet tall) can't reliably handle our winters anymore. Its minimum temperature is in the twenties.
The smaller Little John Bottlebrush boasts about being hardy for our zone, and I have seen most survive. If you are willing to protect it during our next snowpocalypse or ice storm, then it may be a contender for you.
Little John Bottlebrush Care Guide
Scientific Name: Callistemon citrinus 'Little John'
Common Names: Little John Bottlebrush, Dwarf Bottlebrush
Native to: Australia
Lighting Requirements: Full sun
Height: 3 to 5 feet
Width: 3 to 5 feet
Winter Look: Evergreen; retains its dense, blue-green foliage year-round
Seasonal Interest: Bright red, brush-like flowers bloom throughout the year, with peak blooming in spring and summer
Drought Tolerance: High; very drought-tolerant once established
Soil Requirements: Well-drained soil; tolerates sandy or rocky soils
pH Range: 6.0 to 7.5 (slightly acidic to neutral)
Hardiness Zones: 8 to 11
Deer Resistance: Highly resistant
Attracts: Birds, bees, and butterflies
Potential Issues: Generally pest-free; may experience root rot in poorly drained soils or chlorosis in highly alkaline soils
Notes: Performs well in Central Texas, thriving in hot, dry conditions. Occasional deep watering during prolonged drought will help maintain blooms. Mulch to retain moisture and regulate soil temperature. Prune lightly after blooming to maintain its compact shape.