Overview of Gazania pinnata var. grandis
Gazania pinnata var. grandis, also known as the Treasure Flower, is a member of the Asteraceae family and is native to South Africa. It is a popular garden plant known for its long-lasting, brightly colored flowers and its ability to withstand periods of drought.
Common Names
The common names for Gazania pinnata var. grandis vary depending on the region, but they may include:
- Treasure Flower
- Gazania
- African Daisy
- Golden Treasure
- Robust Gazania
Appearance
Gazania pinnata var. grandis is a perennial herb that grows up to 60 cm tall. The flowers are daisy-like and come in a range of colors from yellow, orange, brown, to red. Each flower has a dark central disc that is surrounded by brightly colored petals that close up during periods of low light.
The leaves of the plant are hairy, gray-green, and are often lobed or dissected. The stems are robust and branching, and the plant produces multiple flowers from each stem.
Uses
Gazania pinnata var. grandis is grown primarily for its beautiful flowers and is often used in ornamental gardens, containers, and borders. It is easy to cultivate and requires minimal care, making it an excellent choice for novice gardeners.
In some regions, the plant is used medicinally to treat a variety of ailments, such as coughs, colds, and headaches. The leaves are used to make a tea that is believed to have anti-inflammatory and antimicrobial properties.
Overall, Gazania pinnata var. grandis is a versatile, low-maintenance plant that is prized for its striking flowers and hardiness.
Light Requirements
Gazania pinnata var. grandis prefers full sun to grow well. It can tolerate some shade, but it may affect its flowering and growth. The plant needs at least six hours of sunlight daily to thrive.
Temperature Requirements
The plant requires warm temperatures to grow optimally. The ideal temperature range is between 68°F and 77°F. Gazania pinnata var. grandis can tolerate high temperatures of up to 86°F, but it cannot withstand frost or freezing conditions.
Soil Requirements
The plant can grow in a variety of soils, but it prefers well-drained soils with a pH range of 6.0-7.5. Gazania pinnata var. grandis also grows well in sandy soils that are rich in organic matter. The plant does not tolerate waterlogged soils, which can cause root rot and affect its growth.
Cultivation Methods
Gazania pinnata (Thunb.) Less. var. grandis (DC.) Harv. is best grown in a sunny spot with well-draining soil. It can be propagated from seeds or cuttings. If planting from seeds, they should be sown directly in the garden bed after the last frost. The seedlings should be spaced about 15-20 cm apart. To propagate from cuttings, take 8-10 cm long stem cuttings and plant them in moist soil.
Watering Needs
Gazania pinnata (Thunb.) Less. var. grandis (DC.) Harv. prefers dry conditions and can tolerate drought once established. However, it should be watered regularly during the first month after transplanting or propagation. After this period, it is enough to water the plant once or twice a week during the growing season. Care should be taken not to overwater the plant as the roots may rot.
Fertilization
It is recommended to fertilize Gazania pinnata (Thunb.) Less. var. grandis (DC.) Harv. with a balanced fertilizer every four to six weeks during the growing season. Organic fertilizers can also be used. It is important not to over-fertilize as this can lead to excessive foliage growth at the expense of flowering.
Pruning
Gazania pinnata (Thunb.) Less. var. grandis (DC.) Harv. does not require regular pruning. Deadheading spent flowers can promote further blooming. Any damaged or diseased leaves or stems should be removed promptly to prevent the spread of disease. Pruning to shape or control the plant's size can be done in early spring before the growing season begins.
Propagation of Gazania pinnata var. grandis
Gazania pinnata var. grandis can be propagated by seeds, cuttings, and division.
Propagation by seeds
The easiest and most common way of propagating Gazania pinnata var. grandis is by using its seeds. Sow the seeds in well-draining soil mix and keep it moist until the seeds germinate. The ideal temperature for germination is 20-25°C. Once seedlings have reached a height of 3-4 cm, they can be transplanted into individual pots or directly into the ground.
Propagation by cuttings
Gazania pinnata var. grandis can also be propagated through stem cuttings. Take a stem cutting of about 10 cm in length with a few leaves and nodes. Dip the cut end into rooting hormone and plant it into a well-draining soil mix. Keep the soil moist and the cutting in a warm, well-lit area. Roots will start to form in about 2-3 weeks, and the cutting can be transplanted into individual pots or directly into the ground.
Propagation by division
Propagation by division is also possible with Gazania pinnata var. grandis. Dig out the plant and separate its root ball into equal portions, making sure that each new division has enough roots and foliage. Replant each portion into a well-draining soil mix and keep it moist until it is established.
Disease Management for Gazania pinnata var. grandis
Gazania pinnata var. grandis is vulnerable to several fungal diseases, including Botrytis blight, powdery mildew, and leaf spot. The best way to prevent disease in Gazania pinnata is to keep the plants healthy with proper watering and fertilizing.
If you notice any signs of disease, such as discolored or spotted leaves, remove the affected leaves and either dispose of them or burn them. Water at the base of the plant, taking care not to get the leaves wet. This can help prevent fungal growth.
Pest Management for Gazania pinnata var. grandis
Gazania pinnata var. grandis is attractive to several pests, including aphids, spider mites, and slugs. To prevent an infestation of these pests, remove any weeds around the plant, as these can attract pests.
Encourage natural predators like ladybugs by planting dill or other nectar-heavy plants nearby. If you have a severe problem with pests, try using a soap spray to kill the insects without harming the plant.
Additionally, be vigilant and regularly inspect your Gazania pinnata for any signs of pest infestation, such as webbing or holes in the leaves. Early detection and quick action are key to prevent the spread of pests and the damage they can cause.
