Friday, 2 December 2016

ACHIMENES Gesneriaceae





There are more than 50 hybrid varieties of achimenes, which are more frequently grown than the species. They are among the most colorful and floriferous pot plants, producing abundant white, pink, purple, blue, or yellow flowers throughout the summer. These appear on short stalks from the leaf axils and comprise a narrow tube flaring out into five broad lobes. Each flower lasts only a few days, but the flowering period is extensive. Leaves are generally rich to dark green, slightly hairy, heart-shaped, and with toothed edges. Because achimenes have weak stems, they are ideal for a hanging basket where they can trail.
All achimenes grow from small, caterpillarlike rhizomes, which can be started into growth by dipping them in hot water before planting them, hence the unromantic common name of hot-water plant.


Direct sunlight over a long period may scorch the tender leaves, causing small brown spots to appear.

Dormant tubers will survive the winter in any cool, dry place, but exposure to frost will kill them.

Do not water the plants during the dormant period. That would start them into growth at the wrong time.

Aphids occasionally attack the fleshy growth at the growing tips.

FACT FILE

ORIGIN Guatemala; hybrids.
HEIGHT To 12in/30cm.
POTTING MIX Peat-moss- or soil-based.
REPOTTING In early spring, set 3-4 tubers horizontally, V2in/13mm below the surface of the potting mix in a 4-in/10-cm pot at a minimum of 50°F/10°C.
PROPAGATION Divide tubers when repotting or take 3-in/8-cm tip cuttings in early summer.
KEEPING PLANTS If allowed to dry out, even briefly, the plant will return to dormancy. But do not let flowering plants stand in water, or the root system will quickly start to rot.

PLANT CARE

Bright indirect sunlight. • An average temperature of 65°F/18°C in the growing season; the plants will droop above 80°F/27“C. • Water freely, particularly when the plant is in flower. • Apply a high-potash liquid feed every 2 weeks in the flowering season.

Aechmea FASCIATA (syn. Billbergia rhodocyanea)
Bromeliaceae





URNPLANT


The natural home of this plant is near the floor of the rain forest, where water from the tree canopy drips onto the tough, leathery, strap-shaped leaves. These often grow to 12in/30cm in length, and they combine in the center of the plant to form a natural water-retaining vase shape, from which the common name of silver vase plant is derived.
In mature plants 3-4 years old, a central pointed pink flower stalk some 6in/15cm long emerges from the center of the leaves. The top of the stem opens into many t racts, and in summer the flowers themselves, which are small and blue, bloom on -hort stalks that rise between the bracts. They last for up to six weeks, after which the nflorescence gradually fades and shrivels, and then the rosette dies. At the same time, the plant produces two or three smaller spikes, or rosettes, which can be detached and rotted as separate plants.


FACT FILE

ORIGIN Brazil.
HEIGHT To 20in/50cm.
POTTING MIX Soilless mix with a little fresh sphagnum moss: free drainage is essential.
REPOTTING Every other year.
PROPAGATION Once the offsets at the base of the plant have grown to a viable size, after 4-6 months, remove them in spring and pot them into a rich, barely moist potting mix. Or cut out the old rosette, allowing the new offshoots to develop instead.
KEEPING PLANTS Despite its exotic appearance, this plant is easy to care for. Simply make sure that neither the water well nor the soil dries out.

PLANT CARE

A tolerant plant, taking either direct or subdued sunlight. » Minimum winter temperature of 55°F/13°C with, ideally, 80°F/27°C in the growing season. • Water twice a week with rainwater if possible, keeping lin/2.5cm depth of water in the well at all times. • Do not feed this plant in the conventional way; instead, mist the leaves with weak liquid fertilizer occasionally in the spring and summer.

ALSO RECOMMENDED

Aechmea fasciata ‘Purpurea’ has striking maroon leaves and silver markings; the gray- green leaves of‘Variegata’ are striped with cream-yellow along their length.
If the leaves develop brown tips and then shrivel, it is an indication that the plant is too hot and dry; increase watering.
 



 

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