3 17 weeds & potatoes
TRANSCRIPT
Horticulture
Plant: Shamrock
Term: Weeds
Shamrock - Oxalis Bulb - Green or purple clover-shaped leaves Many varieties – some perennial USDA Zones 6-10, 8-10 Full sun to light shade Small white or pink flowers Many are grown exclusively as potted plants
have relatively short life Pest sensitive
Many are capable of naturalizing Wood Sorrel
Weeds Weed - a plant growing
out of place or an unwanted plant
Weed Types Grasses Broadleaf Onions Annuals Biennials Perennials
Weeds
Can out-compete desired plants Poor environments:
High Moisture Sedge, Moss, Rush, A. Bluegrass
Low Moisture Spurge, Poorjoe, A. Lespedeza, Knotweed
Low pH Sorrel, broomsedge
Low Nitrogen Clovers, Legumes, Mosses
Compact Soil A. Bluegrass, Goosegrass, A. Lespedeza, Plantain
Weed Control Disrupt Lifecycle Out-compete with desired plants Physically remove – roots too!
Herbicides Herbicides – need appropriate weather
conditions & growing plants Selective – only kills certain types of plants Non-selective – kills everything Pre-emergence – keeps seeds from
germinating Post-emergence – After plant is growing
Weed & Feed Mix of fertilizer & herbicide Broadleaf control Selective or Nonselective? Monocots or Dicots? Works by preventing
germination Annual weeds or perennial
weeds? When should you apply?
Bittercress
•Bittercress •Winter Annual•Seeds can shoot 9’•Spring problem
Chickweed
Chickweed Winter AnnualLow-growing, succulent weed that often spreads out in extensive mats. It may survive summer in shady, cool areas that offer sufficient moisture Flowers are small but showy with five deeply cut white petals.
Dandelion
•Dandelion •Biennial or Perennial•Has a thick tap root, dark brown, almost black on the outside though white and milky within. • Dandelion seeds are carried away by the wind and travel like tiny parachutes. A strong wind can carry the seeds miles away from the parent plant.
Lespedeza
•Lespedeza. •Perennial•Found throughout the southeast. •Lespedeza has a strong, firm taproot. •The stems are also firm and woody.
Plantain
•Perennial. • Its roots are fibrous with a strong taproot.
Spotted Spurge
Spotted SpurgeAnnual Spurge contains a milky sap in the stem. The flower of spotted spurge is small and green in color. It germinates in mid spring and flowers from June to September.
Wild Onion and Wild Garlic
•Wild onion and wild garlic are both winter perennials. •Both wild onion and wild garlic spread by bulbs, seed and bulblets. •Both plants flower from April through June.
Virginia Buttonweed
Virginia Buttonweed is a prostrate-growing perennial with branching hairy stems. Virginia buttonweed spreads by seed and plant segments.
White Clover
White Clover is a perennial with trifoliate leaves, stems that root at the nodes, and white flowers.
Oxalis
•Oxalis. A perennial with trifoliate leaves and yellow flowers. •Individual flowers consist of 5 yellow petals. •The roots are long, slender rhizomes occur with a fibrous root system.•Spreads by seed and roots
Purslane Annual Each plant is
capable of producing 240,000 seeds which are viable for up to 40 years.
It is found in gardens and bare ground from June to October.
Speedwell
Speedwell is a winter annual that germinates in mid-fall.
Wild Geranium
Wild Geranium, also called Carolina geranium, is a semi-erect winter annual. The seed forms in a fruit capsule that forms a "storks bill".
Wild Violet
Wild Violet is a winter perennial, growing 2 - 5 inches tall. It can have a tap root or a fibrous root system, and also can produce rooting stolons and rhizomes.The flowers of wild violet range from white to blue to purple and appear from March to June. Wild violet flowers are pansy-like with three lower petals and two lateral petals on long single flower stalks.
1st Qtr Fall Horticulture Plants
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Name this plant
Name this plant
Name this plant
Name this plant
Name this plant
Name this plant
Name this plant
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Name this plant
Name this plant
Name this plant
Name this plant
Name this plant
Name this plant
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Name this plant
Name this plant
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Today: Plant potatoes Cut potatoes into golf ball
sized pieces Each piece must have at
least 2 eyes Dig a trench 6-8” deep Place seed potatoes 15”
apart Cover with 3-4” soil
Hilling potatoes When potatoes sprout above
soil line, fill the rest of the way When plants are 8-10” tall, hill
up the soil around them Potatoes should never be
exposed to sunlight Turn green & become poisonous
Potatoes begin to form when plant sets flowers