Gerbera Daisy

A beloved cut flower with large, perfectly formed daisy blooms in vivid reds, oranges, pinks, yellows, and whites on long, clean stems. Gerbera daisies require excellent drainage and crown exposure to prevent rot, and benefit from being planted slightly high. They can last over a week in a vase with proper conditioning and shallow water.

Start gerbera seeds indoors eight to ten weeks before the last frost date. Sow on the surface of warm, moist seed compost, pressing the pointed end down into the mix with the feathery tail end up. Do not cover seeds deeply. Maintain temperatures of 70 to 75 degrees Fahrenheit and provide bright light. Seeds germinate in fourteen to twenty-one days. Transplant seedlings into individual pots when they have two true leaves. Plants from seed typically flower in fourteen to eighteen weeks.

Plant gerbera daisies in spring after the last frost in rich, well-drained soil in full sun. The critical planting detail is to set the crown slightly above the soil surface, as burying the crown leads to crown rot, the most common cause of failure. Space twelve to fifteen inches apart and ensure excellent air circulation around the plants.

Water at the base rather than overhead, keeping the crown and foliage as dry as possible. Gerbera daisies need consistent moisture during active growth but are extremely sensitive to crown rot in wet conditions. Feed every two to three weeks with a balanced liquid fertilizer during the growing season. In hot climates, light afternoon shade prevents flower color from bleaching.

Remove spent flower stems by pulling them gently from the base. Deadheading encourages continuous blooming from late spring through autumn. In zones 8 and above, gerberas are perennial and will return each year if drainage is excellent. In colder zones, grow as annuals or bring container-grown plants indoors before frost. Gerberas are also outstanding greenhouse crops for year-round cut flower production.

Gerbera daisies make cheerful companions for alstroemeria, snapdragons, and dwarf dahlias in cutting gardens and borders. The bold, colorful flowers pair well with blue-flowered companions like salvia and lobelia for vivid contrast. In containers, combine with trailing petunias and calibrachoa for a colorful summer display. Keep gerberas well-spaced from other plants to ensure the air circulation they need to prevent crown rot.

Gerbera daisies require rich, well-drained soil with a pH of 5.5 to 6.5. They prefer slightly acidic conditions and may develop iron chlorosis in alkaline soils. Amend with compost and ensure excellent drainage by adding perlite or coarse sand to heavy soils. Feed every two to three weeks with a balanced liquid fertilizer during active growth. Apply chelated iron if leaves show yellowing between green veins. Avoid wetting the crown when watering.

Ideal Temperature

Hardiness Zone Compatibility

Cut gerbera daisy stems when the outer two rows of petals have opened and the flower center is still tight. Use a sharp knife to cut stems cleanly at the base and place immediately in shallow water, no more than two inches deep, as the hollow stems can become waterlogged and collapse. Support the heavy flower heads with floral wire inserted through the stem if needed. Fresh-cut gerberas last seven to twelve days with proper care and water changes every two days.

Storage & Preservation

Gerbera daisies do not dry well and are best enjoyed fresh. In frost-free zones, plants remain in the ground year-round. In cold climates, container-grown gerberas can be brought indoors to a bright, cool location for winter bloom. The plants need temperatures above 45 degrees Fahrenheit and bright light to continue flowering indoors. Seeds can be collected from mature flower heads and stored for spring sowing, though hybrid varieties will not come true.

Troubleshooting Common Problems

Crown rot from wet conditions or planting too deeply is by far the most common cause of failure. Always plant with the crown slightly above soil level and ensure impeccable drainage. Gerberas are also prone to leaf miners and powdery mildew, which reduce their ornamental appeal. The stems are heavy relative to their strength and may bend or break without support. Remove faded flowers promptly to encourage continued blooming.

Growing Tips

1. Plant gerberas with the crown sitting slightly above the soil line to prevent the most common cause of failure: crown rot from excessive moisture around the growing point.
2. Use a well-draining potting mix composed of equal parts peat, perlite, and coarse sand to provide the fast drainage and aeration that gerbera roots demand.
3. Water gerberas at the base of the plant rather than overhead, as wet foliage and crowns are highly susceptible to Botrytis gray mold and powdery mildew infections.
4. Provide bright, direct morning sunlight with protection from intense afternoon sun in hot climates, as temperatures above 30°C cause flower production to decline and stem quality to deteriorate.
5. Feed every two weeks during the growing season with a liquid fertilizer high in potassium (such as a 15-5-25 formula) to promote strong stems, vivid petal color, and continuous flower production.
6. Remove spent flower stalks by grasping the stem firmly at its base and pulling with a gentle twisting motion rather than cutting, which leaves stubs that can rot and introduce disease to the crown.
7. Support tall flower stems in windy outdoor locations with individual bamboo stakes and soft ties, as the hollow scapes are prone to bending or snapping under wind or rain.
8. Divide overcrowded multi-crowned clumps every two to three years in early spring, ensuring each division has at least two growing points and a healthy root system for rapid re-establishment.
9. Treat gerberas as tender perennials in cold climates by lifting and overwintering them indoors in a cool, bright location at 10-15°C with minimal watering to maintain dormancy.
10. Inspect the undersides of leaves regularly for leaf miners, which create distinctive winding white tunnels in the foliage, and remove affected leaves immediately to prevent the infestation from spreading.