Perry's Perennial Pages

Propagation Methods for Herbaceous Perennials--I,J,K

A | B | C | D | E | F | G | H | I, J, K | L | M | N, O | P | R | S | T | U,V,W, X,Y,Z

The following table contains temperate and sub-tropical (to USDA zone 9) herbaceous genera and species. Some may be quite rare and only found on a continent or country such as Australia or South Africa. Due to variations in references, some may contain more than one comment or time period for a method.

Methods of Propagation:
S = seed LC = leaf cutting
SC = stem cutting L = layering
RC = root cutting TC = tissue culture or micropropagation
D = division

This table is an updated and expanded version of the printed version which can be found in the NRAES book by Dr. Leonard Perry, Herbaceous Perennial Production.  Appreciation is expressed to Andrea Luchini, graduate assistant, for most of this update.


Scientific Name

Common Name

Methods of Propagation

Time Period

Comments/Requirements

I

 

 

 

 

Iberis sp.

Candytuft

Sc

summer

after flw, hormone helps

 

 

D

spring, fall

difficult

 

 

S

 

nonuniform flw

Iliamna sp.

Wild Hollyhock

S

 

slow, erratic

 

 

D

 

 

Imperata cylindrica

Japanese Blood Grass

D

spring

 

Incarvillea sp.

Hardy Gloxinia

D

spring, fall

 

 

 

D

summer

after flw, difficult

 

 

SC

spring

basal

 

 

S

spring

 

Indigofera sp.

Indigo

SC

 

semi-rip laterals with heel

 

 

RC, S

 

 

 

 

D

 

remove suckers

Indocalamus sp.

 

D

spring

2nd year or older shoots

Inula sp.

 

S

 

 

 

 

D

fall, early spring

tubers

Ipheion sp.

Spring Starflower

S

spring

 

 

 

D

late summer

offsets, for varieties

Ipomopsis sp.

 

S

late summer

 

Iris cristata

 

D

 

 

 

 

SC

late spring

base of fans, mist

Iris sibirica

Siberian Iris

D

spring, fall

 

Iris sp. (Germanica type)

Bearded Iris

D

summer

after flw, cut foliage back to 6"

Isatis sp.

Woad

S

spring, fall

 

I. boissieriana

 

S

spring

 

I. glauca

 

D

 

 

Isophyrum sp.

False Rue Anemone

S

summer

fresh

 

 

D

fall

well-established plants

Ivesia gordonii

 

S

 

 

 

 

D

 

as Potentilla

Ixeris

 

D

 

 

Ixia sp.

Corn Lily

TC

 

 

 

 

S

fall

flw 3rd or 4th year

 

 

D

 

offsets, flw 2nd year

Ixiolirion sp.

Siberian Lily

D

summer

offsets, after flw

 

 

S

fall

 

Ixora sp.

Ixora

SC

 

quick dip of 2,500 ppm each of IBA-NAA mixture

J

 

 

 

 

 

Jankaea heldreichii

 

D

spring

multistemmed, use care

 

 

 

LC

summer

slow, variable

 

 

 

S

summer

 

 

Jasione sp.

Sheep's Bit

S

 

prefers sandy soil

 

 

 

D, SC

 

 

 

Jeffersonia sp.

Twin Leaf

S

summer

fresh, ripe

 

 

 

D

early spring

woody central root

 

Jovibarba (Diopogo) sp.

 

D

summer

secondary rosettes

 

 

 

S

 

rare

 

Juncus sp.

Rush

D

winter

dormant clumps

 

 

 

S

 

 

 

Jurinea sp.

 

D

 

usual method

 

 

 

S

 

as Carlina

 

Jurinella moschus

 

S

 

not easily transplanted

 

 

 

RC

 

as Carlina, difficult

 

Jussiaea: see Ludwigia

 

 

 

 

 

Justicia sp.

Shrimp Plant, Brazilian Plume

SC

 

bottom heat

 

K

 

 

 

 

 

Kalanchoe blossfeldiana

 

SC

 

terminal, with bottom heat and mist

 

 

 

TC

 

 

 

Kalimeris (Asteromoea) sp.

 

S

 

 

 

 

 

D

spring, fall

as Boltonia

 

 

 

SC

late spring

before budding

 

Kalmeria

 

D

 

 

 

Kelseya uniflora

 

D

spring

 

 

 

 

SC

 

porous, limed medium, soft tip

 

 

 

S

fall

 

 

Kentranthus: see Centranthus

 

 

 

 

 

Kernera sp.

 

S

 

as Cochlearia

 

Kirengeshoma sp.

 

D

spring

 

 

 

 

S

 

may be slow (10 months)

 

 

 

SC

spring

 

 

Kitaibelia vitifolia

 

S

spring, fall

 

 

 

 

SC

 

 

 

 

 

D

 

 

 

Knautia sp.

 

D

 

 

 

 

 

SC

spring

from new growth

 

 

 

SC

 

basal

 

 

 

S

 

 

 

Kniphofia (Tritoma) sp.

Torch Lily

S

 

species only

 

 

 

D

early spring

or after flw

 

Koeleria sp.

Crested Hair Grass

D

spring

 

 

 

 

S

 

 

 

Koellia: see Pycnanthemum

 

 

 

 

 

Korolkowia: see Fritillaria

 

 

 

 

 


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