I. macrocephala of gardens (see royleana) is an upright clump forming perennial. Grows flowerheads on hairy green leaves 10 inches long. Produces single large daisy-like orange-yellow flower with many narrow ray flowers around a central disk. They prefer full sun, well drained soil and are cold hardy. Moisture needs vary depending upon species. Propagate by seed, or by dividing in spring or fal
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Size: Height: 1.5 ft. to 2 ft.
Width: 1 ft. to 1.5 ft.
Plant Category: perennials,
Plant Characteristics: low maintenance,
Foliage Characteristics: medium leaves,
Flower Characteristics: long lasting,
Flower Color: oranges, yellows,
Tolerances: slope, wind,
Bloomtime Range: Mid Summer to Late Summer
USDA Hardiness Zone: 4 to 8
AHS Heat Zone: Not defined for this plant
Light Range: Sun to Full Sun
pH Range: 5.5 to 8
Soil Range: Some Sand to Some Clay
Water Range: Normal to Moist
FertilizingHow-to : Fertilization for Annuals and Perennials
Annuals and perennials may be fertilized using: 1.water-soluble, quick release fertilizers; 2. temperature controlled slow-release fertilizers; or 3. organic fertilizers such as fish emulsion. Water soluble fertilizers are generally used every two weeks during the growing season or per label instructions. Controlled, slow-release fertilizers are worked into the soil ususally only once during the growing season or per label directions. For organic fertilizers such as fish emulsion, follow label directions as they may vary per product.
LightConditions : Full Sun
Full Sun is defined as exposure to more than 6 hours of continuous, direct sun per day.
WateringConditions : Normal Watering for Outdoor Plants
Normal watering means that soil should be kept evenly moist and watered regularly, as conditions require. Most plants like 1 inch of water a week during the growing season, but take care not to over water. The first two years after a plant is installed, regular watering is important for establishment. The first year is critical. It is better to water once a week and water deeply, than to water frequently for a few minutes.
MiscellaneousGlossary : Border Plant
A border plant is one which looks especially nice when used next to other plants in a border. Borders are different from hedges in that they are not clipped. Borders are loose and billowy, often dotted with deciduous flowering shrubs. For best effect, mass smaller plants in groups of 3, 5, 7, or 9. Larger plants may stand alone, or if room permits, group several layers of plants for a dramatic impact. Borders are nice because they define property lines and can screen out bad views and offer seasonal color. Many gardeners use the border to add year round color and interest to the garden.
Glossary : Low Maintenance
Low maintenance does not mean no maintenance. It does mean that once a plant is established, very little needs to be done in the way of water, fertilizing, pruning, or treatment in order for the plant to remain healthy and attractive. A well-designed garden, which takes your lifestyle into consideration, can greatly reduce maintenance.
Glossary : Rock Garden
A rock garden is a garden that mimics an alpine area, having dwarf conifers, low-growing sub-shrubs, perennials and ground cover. Often, the soil itself tends to be gravelly or rocky.
Glossary : Perennial
Perennial: traditionally a non-woody plant that lives for two or more growing seasons.