Fanflower
Fanflower (Scaevola aemula) is a tropical perennial plant with a clumping habit that is native to Australia. It is a low-maintenance evergreen plant, usually known for its fan-shaped blue, white, or purple-violet flowers. In spring and summer, the fanflower produces masses of flowers on stiffly erect stems, making it an excellent choice for ground cover, a specimen plant, or part of a bold mixed planting. This plant is suitable for growing in outdoor gardens, containers, and hanging baskets, and is perfect for a low-maintenance garden.
During the first growing season, water the fanflower every 7 to 10 days, or when the soil is beginning to dry out. If growing this plant in containers, check for moisture every 2 to 3 days, as the roots in containers tend to dry out faster than those in the ground. Once established, the fanflower can survive some drought periods without additional water. However, during extended dry periods, you should water the plant at least twice a month to avoid the flowers wilting.
Fanflower can tolerate full sun to partial shade, with partial shade being its preferred light environment. When grown in full sun, the color of its flowers will be more vibrant with stronger colors. When grown in partial shade, its flowers will be more muted in color. This plant prefers a warm climate and sheltered conditions, which will help protect its delicate leaves from cold temperatures or windburn. Climates with hot, dry summers will require more water for the plant to thrive.
The fanflower prefer temperatures above 55 degrees Fahrenheit (12.7 degrees Celsius). If temperatures dip below this in the winter, cover the plant with a sheet of fabric material to insulate it from the cold. In warmer climates, fanflower can tolerate temperatures up to 110 degrees Fahrenheit (43.3 degrees Celsius). Avoid placing the plant in an area that receives afternoon sun, as direct sunlight can cause the flowers and foliage to scorch.
To thrive, fanflower needs a moderate to a high level of humidity, ideally between 50-70%. Fungal diseases can be a problem if the humidity is too high, so be sure not to overwater the plant and keep it away from wet areas or areas with poor air circulation. Proper soil drainage is also important, as this will help ensure the plant isn't sitting in wet soil.
Fanflower prefers well-draining soil that is slightly acidic to neutral (pH 6.5-7.5). If you are growing the fanflower in a container, use a potting soil mix that contains compost and organic matter. To enhance drainage, add some perlite or pumice to the mix. As long as the container is big enough, you can also mix in some sand or small-sized gravel for extra drainage.
Fanflower should be fertilized once or twice a year, preferably in early spring and early summer. The best fertilizers to use are organic liquid fertilizers, as they will provide the plant with necessary nutrients without harming the soil or the plant itself. You can also use slow-release granular fertilizers, but these should be used sparingly to avoid overfertilization. Overfertilization can lead to salt buildup in the soil, which can be damaging to the plant.
Pests and diseases can be an issue with fanflower, but most can be managed or prevented with proper care. Spider mites and scale insects can be a problem, but they can be controlled through an insecticidal soap, neem oil, or horticultural oils. Rust, powdery mildew, and leaf spots are the most common fungal diseases. Fungicides such as captan and sulfur are effective in controlling these issues. To prevent disease, always practice good sanitation by removing dead foliage, debris, and wood mulch from around the plant.
Fanflower needs to be repotted every two to three years to prevent it from becoming rootbound in its pot. When repotting, choose a container that is one size larger than the existing one, as this will give the plant extra room to grow. Use fresh, nutrient-rich potting mix and check the soil frequently to make sure it is moist but not soggy. Add some slow-release fertilizer when repotting to ensure the plant is getting the nutrients it needs.
The fanflower does not require pruning, but it can be pruned to keep it looking full and bushy. To prune, remove any dead, diseased, or damaged growth. This should be done at the beginning of spring to ensure that old stems do not bloom. Pruning should be done regularly to avoid the need for more severe pruning later on. Never trim too much, as this can damage or shock the plant.
Mulching can help retain moisture in the soil and keep the roots of the fanflower cool. It can also help suppress weeds and reduce damage from extreme temperatures. Use an organic mulch such as compost, shredded bark, or leaf litter to help enhance the soil's nutrition and microbial life. Avoid using lawn clippings and other fibrous mulches as these can encourage root rot and fungal diseases.
Fanflower can be propagated easily using stem cuttings. Take cuttings from the tips in early spring and place them in moist, well-draining potting mix. The cuttings should be placed in an area that receives indirect sunlight and kept out of direct sunlight. Mist the cuttings regularly until the roots start to form, at which point you can begin watering more regularly. The cuttings should root within 4 weeks.
Fanflower does not need any support. If it is grown in full sun, however, it should be staked as the stems are prone to bending in strong winds or heavy rain. This can be done simply by placing a stake next to the plant and loosely tying the stem to the stake with string or garden twine.
The fanflower does not require a specific rest period. However, if the plant is looking limp or is not producing flowers, it may need a rest period. This can be done by reducing watering and fertilization and allowing the plant to rest during the winter. In climates with colder winters, the plants should be brought inside and kept in a warm, sunny area.
Fanflower is not toxic to pets. However, the plant's leaves may cause gastrointestinal irritation if ingested, so it is still recommended to keep pets away from the plant and any mulch or fertilizer used to care for it.