TABLE 2: WILLAMETTE VALLEY NATIVE HOST PLANTS
FOR BUTTERFLIES
B. Newhouse/January 2001

Selection criteria: appropriateness for growth on valley floor or adjacent hillsides, use by common butterfly species, practicality for use in gardening, and feasibility of obtaining and growing. Try to obtain stock collected or propagated LOCALLY to protect local genetic diversity.

KEY:

Stature (S):	T = tree	S = shrub	H = herb
Light :	SN=sun	PS = part shade	SH = shade
Moisture:	W=wet	A=average	D= dry
Availability:	N = nurseries	C = cuttings	S = seed collected by botanists or Native Plant Society of OR

PLANT INFORMATION			Light			Moisture			Comments	Availabilty
			SN	PS	SH	W	A	D
T	alder, red	Alnus rubra	X	X		X	X		Vigorous. Prefers to be near stream.	N; C
S	ceanothus, redstem	Ceanothus sanguineus	X	X			X		Beautiful red stems, white flower clusters.	N? C?
H	checkermallow, Cusick's	Sidalcea cusickii	X	X		X	X		Sim. to meadow checkermallow; darker pink, moister site.	N; S
H	checkermallow, meadow	Sidalcea campestris	X				X		Tall, with light pink spikes of flowers.	N; S
H	checkermallow, rosy	Sidalcea virgata	X				X		Similar to meadow checkermallow, but shorter.	N; S
S	cherry, choke-	Prunus virginiana	X				X		Also a good bird food plant.	N
H	cinquefoil, slender	Potentilla gracilis	X			X	X		Can handle slightly moist areas; bright yellow flowers	S
PLANT INFORMATION			Light			Moisture			Comments	Avail-abilty
			SN	PS	SH	W	A	D
H	everlasting, pearly	Anaphalis margaritacea	X				X	X	Also a good nectar plant.	N; S
H	heart, bleeding	Dicentra formosa		X	X		X		Prefers moist. Sole host plant for clodius parnassian.	N
H	lomatium, fernleaf	Lomatium dissectum	X	X			X	X	Finely divided leaves, small flowers.	S
H	lupine, many-leaved	Lupinus polyphyllus	X			X	X		Or streambank lupine (L. rivularis), for dry habitat, sun.	N; S
H	lupine, streambank	Lupinus rivularis	X				X	X	Short-lived perennial.	S
T	maple, bigleaf	Acer macrophyllum	X	X			X		Fast growing.	N; S
H	milkweed, showy	Asclepias speciosa	X				X		Also a good nectar plant; forms patches.	N; S
PLANT INFORMATION			Light			Moisture			Comments	Avail-abilty
			SN	PS	SH	W	A	D
H	monkey flower, yellow	Mimulus guttatus	X			X	X		Likes low, damp ditches; OK with flower bed irrigation.	S
H	mugwort	Artemesia douglasiana	X	X			X		Forms 4' tall patches; flowers small, leaves w/silvery cast.	S
H	nettles, stinging	Urtica dioica		X		X	X		Not good near small children; best in "back corner"	S
T	oak, California black	Quercus kelloggii	X				X		Eugene is north end of this species range.	N?
T	oak, Oregon white	Quercus garryana	X				X		May grow 2 feet/year; oak mistletoe also a host plant!	N
S	oceanspray	Holodiscus discolor	X				X	X	Forms dense shrub also revered by birds.	N
S	rose, Nootka	Rosa nutkana	X				X		Prefers slightly moist.	N
PLANT INFORMATION			Light			Moisture			Comments	Avail-abilty
			SN	PS	SH	W	A	D
H	strawberry, broadpetal	Fragaria virginiana var. platyphylla	X				X		Makes handsome ground cover.	N; S
H	vetch, American	Vicia americana	X	X			X		Somewhat sprawling – not erect.	S
H	violet, early blue	Viola adunca var. adunca	X	X			X		Becoming rare in our area. Avoid non-local seed.	N;
H	violet, stream	Viola glabella		X	X		X		Often likes slightly moister than average.	N; S
T	willow, Scouler's	Salix scouleriana	X	X			X		Small tree; upland substitute for wetland willows.	C
H	wintercress, American	Barbarea othoceras	X			X	X		Not much known about cultivation.	S
H	yarrow	Achillea millefolium	X				X		White flowers; also a good nectar plant.	S

Butterfly Gardening Introduction

Table # 1 Willamette Valley Butterflies and Their Native Host Plants

Table # 3 Willamette Valley Native Nectar Plants for Butterflies

Photographs of Native Host Plants for Butterflies

Photographs of Native Nectar Plants for Butterflies

Download Tanya Harvey's list of Favorite Butterfly Plants in pdf format