‘Crystal Apple White Spine’ is a white heirloom cucumber with faint green markings running from blossom end to stem end. When the green marks turn yellow, the fruit is past its picking prime. It is blocky of shape, and ideal for slicing. Also does well as a pickle. Cucumbers are known space hogs in the garden, but can be managed quite easily if grown on a trellis. There are bush varieties that take up less space too. Plant in full sun and maintain an even moisture level for even-sized fruit. Warm temperatures are needed for germination and pollination. With a growing season of only 55 to 65 days, it can be grown just about anywhere. Cucumbers seem to do best when night temperatures are around 60 degrees and day temperatures around 90 degrees. Plant no sooner than 3 or 4 weeks after your last average frost date.Cucumbers can tolerate partial shade and love rich soil that is high in organic matter and well drained. Work in 1 lb of well balanced fertilizer / 100 SF when preparing soil. Mid-season fertilization will benefit plants. Keep plants well watered. If watered well, do not worry if leaves wilt on the hottest days. This is the plants way of conserving as much water as possible. Be sure to plant varieties of cucumbers that are scab and mosaic resistant.Important Info : Time from planting to harvest is about 60 days. Keep cucumbers picked, as the vine will stop producing if seeds are allowed to mature. Cucumbers do not do well where air is polluted.
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CharacteristicsCultivar: Crystal Apple White Spine
Size: Height: 0 ft. to 0.5 ft.
Width: 0 ft. to 5 ft.
Plant Category: annuals and biennials,
Plant Characteristics: seed start,
Bloomtime Range: not applicable
USDA Hardiness Zone: undefined
AHS Heat Zone: Not defined for this plant
Light Range: Sun to Full Sun
pH Range: 5.5 to 7.5
Soil Range: Some Sand to Clay Loam
Water Range: Normal to Moist
LightConditions : Full Sun
Full Sun is defined as exposure to more than 6 hours of continuous, direct sun per day.
WateringConditions : Moist and Well Drained
Moist and well drained means exactly what it sounds like. Soil is moist without being soggy because the texture of the soil allows excess moisture to drain away. Most plants like about 1 inch of water per week. Amending your soil with compost will help improve texture and water holding or draining capacity. A 3 inch layer of mulch will help to maintain soil moisture and studies have shown that mulched plants grow faster than non-mulched plants.
ProblemsDiseases : Verticillium or Fusarium Wilt
Wilts may be contracted through infected seed, plant debris, or soil. This fungus begins and multiplies during the cool, moist season, becoming obvious when weather turns warm and dry. Plants wilt because the fungus damages their water conducting mechanisms. Overfertilization can worsen this problem. Able to overwinter in soil for many years, it is also carried and harbored in common weeds.
Prevention and Control: If possible, select resistant varieties. Keep nitrogen-heavy fertilizers to a minimum as well as over-irrigating as they encourage lush growth. Practice crop rotation and prune out or better yet remove infected plants.
Pest : Cucumber Beetle
Cucumber Beetles have a greenish-yellow cast to their hard wing covers, which have a dozen black spots. The western spotted cucumber beetle is orangish with 3 rows of black spots. The most destructive of the cucumber beetles is the western striped cucumber beetle - it has greenish yellow stripes. The larvae of these beetles have legs, are white and slender and about 1/4 - 1/2 of an inch long and have brown heads with brown patches on the first and last segments.
Adult beetles chew holes in leaves and flowers and are notorious disease spreaders of such things as mosaic virus and bacterial wilt. This is transmitted through their mouth parts.
Prevention and Control: If you can find resistant varieties, plant them. Floating row covers help to keep out adults, but should be removed at the onset of flowers. Birds, tachinid flies, and handpicking are the safest control. Insecticides can be used; make sure the product you are using is labelled for cucumber beetle control. Follow all label procedures to a tee.
Pest : Thrips
Thrips are small, winged insects that attack many types of plants and thrive in hot, dry conditions (like heated houses). They can multiply quickly as a female can lay up to 300 eggs in a life span of 45 days without mating. Most of the damage to plants is caused by the young larvae which feed on tender leaf and flower tissue. This leads to distorted growth, injured flower petals and premature flower drop. Thrips also can transmit many harmful plant viruses.
Prevention and Control: keep weeds down and use screening on windows to keep them out. Remove or discard infested plants, keep them away from non-infested plants. Trap with yellow sticky cards or take advantage of natural enemies such as predatory mites. Sometimes a good steady shower of water will wash them off the plant. Consult your local garden center professional or county Cooperative extension office for legal chemical recommendations.
Pest : Whiteflies
Whiteflies are small, winged insects that look like tiny moths, which attack many types of plants. The flying adult stage prefers the underside of leaves to feed and breed. Whiteflies can multiply quickly as a female can lay up to 500 eggs in a life span of 2 months. If a plant is infested with whiteflies, you will see a cloud of fleeing insects when the plant is disturbed. Whiteflies can weaken a plant, eventually leading to plant death if they are not checked. They can transmit many harmful plant viruses. They also produce a sweet substance called honeydew (coveted by ants) which can lead to an unattractive black surface fungal growth called sooty mold.
Possible controls: keep weeds down; use screening in windows to keep them out; remove infested plants away from non-infested plants; use a reflective mulch (aluminum foil) under plants (this repels whiteflies); trap with yellow sticky cards, apply labeled pesticides; encourage natural enemies such as parasitic wasps in the garden; and sometimes a good steady shower of water will wash them off the plant.
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.
Fungi : Powdery Mildew
Powdery Mildew is usually found on plants that do not have enough air circulation or adequate light. Problems are worse where nights are cool and days are warm and humid. The powdery white or gray fungus is usually found on the upper surface of leaves or fruit. Leaves will often turn yellow or brown, curl up, and drop off. New foliage emerges crinkled and distorted. Fruit will be dwarfed and often drops early.
Prevention and Control: Plant resistant varieties and space plants properly so they receive adequate light and air circulation. Always water from below, keeping water off the foliage. This is paramount for roses. Go easy on the nitrogen fertilizer. Apply fungicides according to label directions before problem becomes severe and follow directions exactly, not missing any required treatments. Sanitation is a must - clean up and remove all leaves, flowers, or debris in the fall and destroy.
Fungi : Leaf Spots
Leaf spots are caused by fungi or bacteria. Brown or black spots and patches may be either ragged or circular, with a water soaked or yellow-edged appearance. Insects, rain, dirty garden tools, or even people can help its spread.
Prevention and Control: Remove infected leaves when the plant is dry. Leaves that collect around the base of the plant should be raked up and disposed of. Avoid overhead irrigation if possible; water should be directed at soil level. For fungal leaf spots, use a recommended fungicide according to label directions.