Plant Propagation by Division and Separation A subtle difference Division plant parts were not intended to be separated at least not immediately perhaps by death requires us to cut or pull plants apart ID: 772486
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Plant PropagationbyDivision and Separation
A subtle differenceDivision plant parts were not intended to be separated (at least not immediately, perhaps by death) requires us to cut or pull plants apart Separation Plant parts are formed with the intention of detaching (specific abscission zone) plant parts detach naturally (although we may help)
Reasons to divide “Make” a bunch of new plants (propagation) “Revive” existing plant(s ) Preserve certain characteristics (chimeras)
Chimera
ChimeraSingle organism with two genetically different types of tissue Sansevieria = periclinal chimera never propagate true-to-type by cutting types or methods that require adventitious shoot formation
Division Stolons “Runners” Horizontal stem (usually above ground) One of many stems Often thin with long internodesDevelop plantlets at the nodesExamples (Fragaria, Ajuga , Spider Plant, Cynodon, Zoysia) Anytime you have roots or go into mist
DivisionRhizomes Horizontal, underground stem The main stem Often thick, white and fleshy Has nodes and internodes Examples (Iris, Canna, Water Lily, Johnson Grass, Sansevieria, Bamboo)Iris = divide after flowering (ideally)
DivisionTubers Swollen stem NOT a root i.e. it has nodes and buds Examples (caladiums, oxalis, anemones, and potato, yam) Divide early spring, 2 eyes per division
SeparationTrue bulbs (tunicate) Compressed stem enclosed by fleshy layers (leaves) Offsets (splitting) Produce new bulblets undergroundSome (e.g.) Walking Onion topset bulbilsExamples (onions, tulips, and narcissus )Divide summer or fall (after flowering and the foliage has died back)
Walking Onion bulbils
Separation True bulbs (imbricate) Compressed stem enclosed by fleshy, scaly layers (leaves) Offsets (splitting) Scaling Produce new bulbs [bulbils (above ground on the stem) & bulblets (below ground between scales)]Examples (Asian Lilies)Divide summer or fall (after flowering and the foliage has died back)
Tiger Lily bulbils
SeparationCorms Squat, swollen stem with nodes and internodes Storage No fleshy layers (thin, dry) New corm develops above the old one CormelsExamples (Crocus, Gladiolus, some Begonias)Divide after foliage is spent
Division Offsets Examples (Date Palm, Haworthia , Bromeliads, Aloe, many Cacti) Provide proper conditions
DivisionCrowns and clumps Examples (Ornamental grasses) Divide during dormancy
DivisionTuberous roots Storage Crown tissue (proximal) Examples (Dahlias, S weet Potatoes)Divide (fall) after foliage, replant (spring), or produce slipshttp://www.food-skills-for-self-sufficiency.com/sweet-potato-slips.html
DivisionFleshy roots Examples (Peonies, Daylilies) Fall or spring
Yam or sweet potatohttp://aggie-horticulture.tamu.edu/archives/parsons/vegetables/sweetpotato.html
Next weekBring a sharp knife for grafting! Bring apple scion wood if you have special varieties you would like to graft onto the M111 rootstock.