Grevillea johnsonii, Grevillea

Grevillea johnsonii

Family: Proteaceae
Origin: Australia
Large shrub 5-10 ft tallFull sunModerate waterRed, crimson, vinous flowersPlant attracts butterflies, hummingbirds

Grevillea johnsonii, also known as Grevillea, is a large shrub native to Australia that grows between 5-10 feet tall. It is grown in USDA Zones 9-11 and needs full sunlight to thrive. It is best to water the grevillea moderately from October to April, and keep the soil moist during summer months. Repotting should be done in March. The best potting compost consists of equal parts of turfy loam, peat, and sand. Pruning may be done after flowering by slightly shortening the shoots. Grevilleas can be propagated by seed, cuttings, and grafting.

The Grevillea provides a variety of shapes and sizes to fit any garden and also bears showy crimson or vinous flowers that attract butterflies and hummingbirds. In cold regions with freezing temperatures, the Grevillea should be grown in a pot and brought indoors during winter months for protection. Care instructions should be followed for watering and soil temperature. For optimal growing conditions, the pot should be placed in a sunny location, the soil should remain moist, fertilized during the summer months and pruned after flowering to promote new growth.

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