Blaze Improved is a classic, reliable climbing rose known for its vibrant clusters of semi-double, cherry-red blooms. It is an improved selection of the original ‘Blaze’, offering better repeat flowering and overall garden performance. The flowers appear in large sprays throughout the season, creating a strong vertical display against its glossy, dark green foliage. With proper support, it can quickly cover trellises, fences, arbors, or pergolas, providing bold seasonal colour and structure in the landscape. It performs best in full sun and benefits from good air circulation.
- Height: 2.4–3 m (8–10 ft)
- Spread: 1.2–1.8 m (4–6 ft)
- Light: Full sun (6–8+ hours daily)
- Water: Moderate; deep watering weekly during dry periods
- Soil: Fertile, well-drained soil enriched with compost
- Fertilizer: Feed every 4–6 weeks during active growth with balanced rose fertilizer
- Blooming: Repeat blooms from early summer to frost
- Hardiness: Zone 5; in Regina requires heavy winter protection (mounding soil at base, deep mulch, or sheltered placement)
- Maintenance: Prune in early spring; train and tie canes to support structure
- Spacing: 1.2–1.8 m (4–6 ft) from other plants for airflow