These are annual or perennial herbs or subshrubs, sometimes with rhizomes. The stem is usually branching and erect to a maximum height around 80 centimeters. The leaves are alternately arranged. Some taxa have only basal leaves. They vary in shape. They are glandular in most species. The inflorescence is a solitary flower head. The head can have 15 or more ray florets, while some taxa lack any ray florets. They can be almost any shade of yellow, orange, red, purplish, brown, white, or bicolored. They are sometimes rolled into a funnel shape. There are many tubular disc florets at the center of the head in a similar range of colors, and usually tipped with hairs. The fruit usually has a pappus of scales.
Planting & Care
Container grown plants can be set out throughout the growing season, but spring or fall planting is ideal. Space dwarf cultivars about a foot apart; taller varieties should be set about 18 inches apart. Prepare the garden bed by using a garden fork or tiller to loosen the soil to a depth of 12 to 15 inches, then mix in a 2- to 4-inch layer of compost. Dig a hole twice the diameter of the pot the plant is in. Carefully remove the plant from its container and place it in the hole so the top of the root ball is level with the soil surface. Carefully fill in around the root ball and firm the soil gently. Water thoroughly.
Sunlight: Full sun Soil: They prefer loose, sandy soil that isn t overly fertile with a pH near neutral or slightly alkaline.
Water: Water newly set out or divided plants regularly until they become established.
Fertilizer: Fertilize the seedling every 10 to 14 days with a 10-10-10 nitrogen, phosphorous, potassium water-soluble fertilizer. Mix 1/2 teaspoon fertilizer with 1 gallon water. Apply the fertilizer in place of a watering.
The picture is an indication of type only
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