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Aeonium arboreum
( Schwarzkopf Stonecrop )

A succulent houseplant, reaching 6 feet tall with rosettes of dark green, fleshy leaves at the end of thick stems. Flowers are yellow and rarely seen on indoor plants. Cactus food every two weeks, and very minimal water during the winter. The cultivar, 'Schwarzkopf', has very dark, purple-black leaves.


How to Grow this Plant:


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Characteristics
Cultivar:Schwarzkopf  
Family:Crassulaceae  
Size:Height: 0 ft. to 6 ft.
Width: 0 ft. to 6 ft.  
Plant Category:cacti and other succulents, houseplants, perennials,  
Plant Characteristics:spreading,  
Foliage Characteristics:evergreen,  
Foliage Color:black, red to burgundy,  
Flower Characteristics: 
Flower Color:yellows,  
Tolerances:drought,  
Requirements
Bloomtime Range:Late Spring to Late Spring  
USDA Hardiness Zone:11 to 11  
AHS Heat Zone:Not defined for this plant  
Light Range:Part Shade to Part Shade  
pH Range:Not defined for this plant  
Soil Range:Some Sand to Clay Loam  
Water Range:Dry to Normal  

Plant Care



Fertilizing
How-to : Fertilizing Houseplants

Houseplants may be fertilized with: 1. water-soluble, quick release fertilizers; 2. temperature controlled slow-release fertilizers; 3. or organic fertilizers such as fish emulsion. Water soluble fertilizers are used every two weeks or per label instructions. Controlled, slow-release fertilizers are carefully worked into the soil usually only once during the growing season or per label directions. For organic fertilizers, such as fish emulsion, follow label directions. Allow houseplants to 'rest' during the winter months; stop fertilizing in late October and resume feeding in late February.

Light
Conditions : Partial Shade

Partial Shade is defined as filtered light found beneath trees with high limbs. Partial shade usually offers some protection from direct afternoon sun.

Conditions : Dry Houseplants

Houseplants that do not require much water, or dry houseplants, should be allowed to dry out completely between waterings, especially in winter. When you do water, make sure that the soil is completely saturated and excess water runs out the bottom of the pot. Never water just a little bit as mineral salts will build up in soil. It is not uncommon for many plants that require moisture during the growing season to need less during the winter months when the plant is dormant. Cacti are probably the most well known drought tolerant plants, but even they need occasional waterings.

Conditions : Bright Light for Houseplants

Houseplants requiring bright light should be placed within 2 feet of an eastern or western exposure window or within 2 to 5 feet of a southern exposure window.

Watering
How-to : Xeriscaping

Xeriscaping is a method of planting which promotes naturally drought tolerant plants and water saving methods. Much consideration is given not only to the plants chosen for the design, but the design itself. Lawns are greatly decreased in size and usually located in the center of plantings at a lower grade as to catch any runoff. Shrubs requiring the most water, are conservatively used and thoughtfully placed, where they may be easily watered, preferably from runoff, and moisture conserved. There is a strong emphasis on using native plants, which a purist will do exclusively. At the very least, improved cultivars of natives are highly recommended.

Irrigation maybe used to supplement watering, but takes a creative turn in the form of drip systems and recycled catch water. Organic mulches in the form of compost, straws, and barks are also used to retain as much water as possible. In extremely dry areas, it is not uncommon for gravel and rocks to serve as the mulch.

A xeriphytic landscape is one that takes your particular site into consideration. A plant that maybe considered low water usage in one area of the country, may not be in another area, due to climatic stresses.

Conditions : Arid

Arid, is defined as the complete absence of water.

Conditions : Dry

Dry is defined as an area that regularly receives water, but is fast draining. This results in a soil that is often dry to a depth of 18 inches.

Planting
How-to : Planting Perennials

Determine appropriate perennials for your garden by considering sun and shade through the day, exposure, water requirements, climate, soil makeup, seasonal color desired, and position of other garden plants and trees.

The best times to plant are spring and fall, when soil is workable and out of danger of frost. Fall plantings have the advantage that roots can develop and not have to compete with developing top growth as in the spring. Spring is more desirable for perennials that dislike wet conditions or for colder areas, allowing full establishment before first winter. Planting in summer or winter is not advisable for most plants, unless planting a more established sized plant.

To plant container-grown plants: Prepare planting holes with appropriate depth and space between. Water the plant thoroughly and let the excess water drain before carefully removing from the container. Carefully loosen the root ball and place the plant in the hole, working soil around the roots as you fill. If the plant is extremely root bound, separate roots with fingers. A few slits made with a pocket knife are okay, but should be kept to a minimum. Continue filling in soil and water thoroughly, protecting from direct sun until stable.

To plant bare-root plants: Plant as soon as possible after purchase. Prepare suitable planting holes, spread roots and work soil among roots as you fill in. Water well and protect from direct sun until stable.

To plant seedlings: A number of perennials produce self-sown seedlings that can be transplanted. You may also start your own seedling bed for transplanting. Prepare suitable planting holes, spacing appropriately for plant development. Gently lift the seedling and as much surrounding soil as possible with your garden trowel, and replant it immediately, firming soil with fingertips and water well. Shade from direct sun and water regularly until stable.

How-to : Potting Indoor Plants

Make sure that the plant you have chosen is suitable for the conditions you are able to provide it: that it will have enough light, space, and a temperature it will like. Remember that the area right next to a window will be colder than the rest of the room.

Indoor plants need to be transplanted into a larger container periodically, or they become pot/root-bound and their growth is retarded. Water the plant well before starting, so the soil will hold the root ball together when you remove it from the pot. If you have trouble getting the plant out of the pot, try running a blade around the edge of the pot, and gently whacking the sides to loosen the soil.

Always use fresh soil when transplanting your indoor plant. Fill around the plant gently with soil, being careful not to pack too tightly -- you want air to be able to get to the roots. After the plant is in the new pot, don't fertilize right away... this will encourage the roots to fill in their new home.

The size pot you choose is important too. Select one that is not more than about 1 inch greater in diameter. Remember, many plants prefer being somewhat pot bound. Always start with a clean pot!

Problems
Pest : Mealybugs

Small, wingless, dull-white, soft-bodied insects that produce a waxy powdery covering. They have piercing/sucking mouth parts that suck the sap out of plant tissue. Mealybugs often look like small pieces of cotton and they tend to congregate where leaves and stems branch. They attack a wide range of plants. The young tend to move around until they find a suitable feeding spot, then they hang out in colonies and feed. Mealybugs can weaken a plant leading to yellow foliage and leaf drop. They also produce a sweet substance called honeydew (coveted by ants) which can lead to an unattractive black surface fungal growth called sooty mold.

Prevention and Control: Isolate infested plants from those that are not. Consult your local garden center professional or the Cooperative Extension office in your county for a legal insecticide/chemical recommendation. Encourage natural enemies such as lady beetles in the garden to help reduce population levels of mealy bugs.

Pest : Aphids

Aphids are small, soft-bodied, slow-moving insects that suck fluids from plants. Aphids come in many colors, ranging from green to brown to black, and they may have wings. They attack a wide range of plant species causing stunting, deformed leaves and buds. They can transmit harmful plant viruses with their piercing/sucking mouthparts. Aphids, generally, are merely a nuisance, since it takes many of them to cause serious plant damage. However aphids do produce a sweet substance called honeydew (coveted by ants) which can lead to an unattractive black surface growth called sooty mold.

Aphids can increase quickly in numbers and each female can produce up to 250 live nymphs in the course of a month without mating. Aphids often appear when the environment changes - spring & fall. They're often massed at the tips of branches feeding on succulent tissue. Aphids are attracted to the color yellow and will often hitchhike on yellow clothing.

Prevention and Control: Keep weeds to an absolute minimum, especially around desirable plants. On edibles, wash off infected area of plant. Lady bugs and lacewings will feed on aphids in the garden. There are various products - organic and inorganic - that can be used to control aphids. Seek the recommendation of a professional and follow all label procedures to a tee.

Miscellaneous
Glossary : Container Plant

A plant that is considered to be a good container plant is one that does not have a tap root, but rather a more confined, fibrous root system. Plants that usually thrive in containers are slow- growing or relatively small in size. Plants are more adaptable than people give them credit for. Even large growing plants can be used in containers when they are very young, transplanted to the ground when older. Many woody ornamentals make wonderful container plants as well as annuals, perennials, vegetables, herbs, and bulbs.

Glossary : Evergreen

Evergreen refers to plants that hold onto their leaves or needles for more than one growing season, shedding them over time. Some plants such as live oaks are evergreen, but commonly shed the majority of their older leaves around the end of January.

Glossary : Perennial

Perennial: traditionally a non-woody plant that lives for two or more growing seasons.

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