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Allamanda Dwarf Yellow

Allamanda Dwarf Yellow

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Growing Guide for Dwarf Allamanda
  • Best Growing Environment
    • Dwarf Allamanda thrives in tropical to subtropical climates with warm temperatures, high humidity, and well-draining, fertile soil enriched with organic matter like peat moss or compost.
    • It prefers full sun to partial shade, ideally with at least 4–6 hours of direct sunlight daily, making it suitable for sunny garden beds, borders, or containers in warm regions.
    • The plant does best in sheltered locations with good air circulation, protected from strong winds, and requires a frost-free environment to flourish year-round.
    • In non-tropical areas, it can be grown as a container plant and brought indoors during cooler months to avoid cold damage.
  • Botanical Name
    • The botanical name for Dwarf Allamanda is Allamanda schottii ‘Compacta’ or Allamanda cathartica ‘Compacta’, a cultivar of the Allamanda genus in the Apocynaceae family.
    • It is a compact selection of the larger Allamanda species, bred for smaller size and suitability for ornamental use.
  • Common Names
    • Commonly known as Dwarf Allamanda, Dwarf Golden Trumpet, or Compact Allamanda.
    • Other names may include Bush Allamanda or simply Allamanda, though these can also refer to larger varieties.
  • Average Height and Diameter
    • Dwarf Allamanda typically grows to an average height of 2–3 feet (0.6–0.9 meters), significantly smaller than its standard counterparts.
    • Its diameter or spread reaches about 2–3 feet (0.6–0.9 meters), making it ideal for small gardens, containers, or as a low hedge or border plant.

  • Growth Rate
    • This plant has a moderate growth rate, typically adding 6–12 inches (15–30 cm) per year under optimal conditions with ample sunlight, water, and nutrients.
    • Growth may slow in suboptimal conditions, such as poor soil, insufficient light, or cooler temperatures.
  • Sun Requirements
    • Dwarf Allamanda thrives in full sun (6+ hours of direct sunlight daily) but can tolerate light shade or partial sun (4–6 hours), though blooming may be reduced in shadier conditions.
    • In very hot climates, some afternoon shade can prevent leaf scorch, especially during peak summer heat.


    • Ensure the plant is placed in a bright location, such as a south-facing garden bed or near a sunny window if grown indoors.
  • Cold Hardiness
    • Dwarf Allamanda is hardy in USDA Zones 10–11, tolerating minimum temperatures of 30°F to 40°F (-1°C to 4°C). It is not frost-tolerant and will suffer leaf drop or stem damage in colder conditions.
    • In Zone 10a or cooler climates, protect plants with frost cloth or move container plants indoors during winter to maintain temperatures above 55°F (13°C).


    • In colder regions (below Zone 10), it is often grown as an annual or overwintered indoors.
  • Water Requirements
    • Requires regular watering to keep soil consistently moist but not waterlogged, especially during the growing season (spring to fall).
    • Water 1–2 times per week, providing about 1 inch (2.5 cm) of water, allowing the top inch of soil to dry out slightly between waterings to prevent root rot.


    • In hot, dry weather, increase watering frequency, potentially daily for container plants, but ensure excellent drainage to avoid soggy soil.
  • Detailed Fertilizing Guide
    • Use a high-phosphorus, water-soluble fertilizer (e.g., 10-20-10) or a balanced fertilizer (e.g., 10-10-10) to promote blooming and healthy growth.
    • Fertilize every 2 weeks during the growing season (spring to fall) with a diluted liquid fertilizer, following package instructions to avoid over-fertilization, which can lead to excessive foliage and fewer blooms.

    • For young plants, a phosphorus-heavy fertilizer supports root development; for mature plants, a general-purpose fertilizer is sufficient unless soil tests indicate specific deficiencies.

    • Avoid fertilizing in winter when growth slows, and flush soil occasionally to prevent salt buildup from excess fertilizer.

  • Planting Guide
    • Timing: Plant in spring (late March to early April) or early fall in warm climates to allow root establishment before extreme heat or cold. In cooler zones, plant after the last frost date.

    • Site preparation: Choose a sunny, well-draining location. Amend soil with organic matter like peat humus or composted manure to improve fertility and drainage.

    • Planting process: Dig a hole twice as wide and as deep as the root ball. Place the plant at the same depth as in its nursery pot, backfill with amended soil, and water deeply. Apply 2–3 inches (5–7.5 cm) of organic mulch (e.g., pine bark) around the base, keeping it away from the stem to prevent rot.
    • Aftercare: Water regularly during the first year to establish roots. Prune lightly in late winter or early spring to maintain compact shape and encourage blooming. For container plants, use a pot only slightly larger than the root ball to avoid water retention issues.