Crataegus submollis, known as the northern downy hawthorn, northern red haw, Quebec hawthorn, or hairy cockspurthorn, is a species of hawthorn that grows to about 7 m in height and typically carries large crops of red fruit.This species is closely related to C. mollis, but the two species have separate native ranges. Amongst other differences between these two species, C. mollis has approximately 20 stamens, whereas C. submollis has approximately 10 stamens per flower. Crataegus submollis is native to north-eastern North America, and has been introduced in Europe.The thorns are usually numerous and up to 7 cm in length.
The Arnold hawthorn is resistant to disease and is usually not susceptible to illnesses. As far as care goes, this plant is fairly low-maintenance. Outdoors it needs only minimal watering, and larger specimens generally do not require pruning. Smaller plants, however, should be pruned after they finish blooming. Arnold hawthorn is appropriate for anyone with outdoor space, like a garden or deck, and does not demand much care experience.
How to keep Crataegus Arnoldiana.
Light
Arnold hawthorn is native to open habitats, such as sunny meadows and forest edges, which provide abundant light. It performs best in Full Sun but can also tolerate Partial Sun, adapting well to different sunlight conditions.
Temperature
Arnold hawthorn shows strong adaptability to different climate conditions, whether in scorching summers or cold winters. It nonetheless has an optimal temperature range for growth. If temperatures become excessively high, the plant is susceptible to heat and humidity stress, which can lead to its death. In areas where temperatures approach the lower limit of its cold tolerance, it is important to provide insulation to protect the plant.
Fertilizer
The timing of fertilizer application is important for Arnold hawthorn. Apply fertilizer in early spring and continue monthly until early summer. Fertilizer encourages attractive blooms and supplies energy during both dormant and active growth periods.
Botanical profile.
- Plant Type
- Tree
- Life Cycle
- Perennial
- Genus
- Crataegus
- Family
- Rosaceae
- Hardiness Zone
- 4-8
- Mature Height
- 3.66 m to 10.97 m
- Mature Spread
- 3.05 m to 6.1 m
- Leaf Color
- Dark Green
- Leaf Type
- Deciduous
- Flower Color
- White
- Flower Size
- 1.02 cm to 2.03 cm
- Bloom Time
- Mid spring, Late spring
- Planting Time
- Spring, Summer
- Harvest Time
- Late summer, Early fall, Mid fall
- Native Area
- United States
Other names.
