Heuchera, Obsidian
Short Description
Dark-purple, almost black leaves are crowned with creamy-white airy panicles.
Full Description
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Product properties
Zone This refers to the USDA hardiness zone assigned to each part of the country, based on the minimum winter temperature that a region typically experiences. Hardiness zone ranges are provided for all perennial plants and you should always choose plants that fall within your range.
4-9
Sun The amount of sunlight this product needs daily in order to perform well in the garden. Full sun means 6 hours of direct sun per day; partial sun means 2-4 hours of direct sun per day; shade means little or no direct sun.
Full Shade, Part Sun
Height The typical height of this product at maturity.
8-10 inches
Spread The width of the plant at maturity.
12-16 inches
Bloom Season The time of the year when this product normally blooms.
Summer
Resistant To Adverse garden conditions, such as heat or frost, deer or rabbits, that this product can tolerate well.
Cold, Poor Soil
Plant Shipping Information
Shipping NowRestrictions:
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Heuchera
Start Indoors Starting seeds indoors is called Indoor Sow or Indirect Sow and these dates are when to sow seeds indoors in the spring or summer
Transplant When to transplant bulbs or roots in the garden for spring
Start Outdoors Starting seeds outdoors is called Outdoor Sow or Direct Sow and these dates are when to sow seeds outdoors in the spring or summer
Start Indoors Fall Starting seeds indoors in the fall called Indoor Sow or Indirect Sow and these dates are when to sow seeds outdoors in the fall
Transplant Fall Transplant Fall-When to transplant bulbs or roots in the garden for fall
Start Outdoors Fall Starting seeds outdoors in the fall is called Outdoor Sow or Direct Sow and these dates are when to sow seeds outdoors in the fallFirst Date: Mar-28 - Last Date: May-16
First Date: Sep-17 - Last Date: Oct-29
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Heuchera: Potted Plant Perennial
How Plant
Planting Potted Plants:
- Select a location with well-drained, rich, moist soil in partial shade or full sun. Morning sun and afternoon shade is preferred.
- Prepare the bed by turning the soil under to a depth of 6-12 inches removing any debris, and lightly raking as level as possible.
- The addition of organic matter (leaf mold, compost, well-rotted manure) benefits all gardens and is essential in recently constructed neighborhoods.
- Plant on a cloudy day or in late afternoon to reduce transplant shock.
- Dig a hole for each plant large enough to amply accommodate the root ball.
- Unpot the plant and gently loosen the root ball with your hands to encourage good root growth.
- Place the top of the root ball even with the level of the surrounding soil. Fill with soil to the top of the root ball. Press soil down firmly with your hand.
- Use the plant tag as a location marker.
- Thoroughly water and apply a light mulch layer on top of the soil (1-2 inches) to conserve water and reduce weeds.
How to Grow
- Keep weeds under control during the growing season. Weeds compete with plants for water, space and nutrients, so control them by either cultivating often or use a mulch to prevent their germination.
- Mulches also help retain soil moisture and maintain even soil temperatures. For perennials, an organic mulch of aged bark or shredded leaves lends a natural look to the bed and will improve the soil as it breaks down in time. Always keep mulches off a plant’s stems to prevent possible rot.
- Careful watering is essential in getting perennials off to a good start. Water thoroughly at least once a week to help new roots grow down deeply. Soil should be damp at about 1 inch below the soil surface. You can check this by sticking your finger in the soil. Water early in the morning to give all leaves enough time to dry. One inch of rain or watering per week is recommended for most perennial plants. You can check to see if you need to add water by using a rain gauge.
- Until plants become established, some protection from extreme winds and direct, hot sunlight may be necessary. Good air movement is also important.
- After new growth appears, a light fertilizer may be applied. Keep granular fertilizers away from the plant crown and foliage to avoid burn injury. Use low rates of a slow release fertilizer, as higher rates may encourage root rots.
- Feed heucheras in spring with a top dressing of compost, and renew the mulch around the plants as needed.
- Deadhead for more continuous blooming if you are growing for the flowers.
- Divide plants in the spring or fall when the centers of the crowns become woody. Discard the woody part and replant the side shoots. Plants often self-sow when they are happy.
Growing Tips
- Heucheras make a great woodland groundcover or a specimen plant. They are attractive in the front of the border or as an edging.
- Grown mostly for their show foliage, which brightens shady areas, many varieties have attractive flowers as well that are good for cutting.