This list contains plants that have not been reported as having systemic effects on animals or as having intense effects on the gastrointestinal tract. Should your dog eat one of these plants and have a reaction, take your pet and a sample of the plant to your local vet immediately.
There are over 550 non-toxic plants. I will List a few, to find more please go to:
ASPCA.org
A
Achira
Acorn squash
African violet
Algaroba
B
Bachelors buttons
Ball fern
Bamboo
Bamboo palm
C
Caeroba
Calathea insignis
Calthea lancifolia
California pitcher plant
D
Dainty
Dainty rabbits-foot fern
Dallas fern
Dancing doll orchid
E
Earth star
Easter cattleya
Easter daisy
Easter lily cactus
F
False aralia
Fairy fountain
Fan tufted palm
Feather fern
G
Garden marigold
Garden snapdragon
German violet
Gherkins
H
Hagbrier
Hardy baby tears
Hardy gloxinia
Haws
I
Ice plant
Imbricata sword fern
Irish moss
Iron cross begonia
J
Jackson brier
Jacob's ladder
Japanese aralia
Japanese holly fern
K
Kaempferis
Kahali ginger
Kenilworth ivy
Kentia palm
L
Lace flower vine
Lace orchid
Ladies ear drops
Lady lou
M
Madagascar jasmine
Magnolia bush
Mahonia aquifolium
Malabar gourd
N
Narrow leafed pleomele
Natal plum
Neanthe bella palm
Nematanthus spp.
O
Odontoglossum spp.
Old man cactus
Old world orchid
Orange star
P
Paddys wig
Painted lady
Palm lily
Pampus grass
Q
Queen's spiderwort
Queencup
Queens spiderwort
Queensland arrowroot
R
Rabbits foot fern
Rainbow orchid
Red african violet
Red berried greenbrier
S
Saffron spike zebra
Saint Bernards lily
Sand lily
Sand verbena
T
Tahitian bridal veil
Tailed orchid
Tall feather fern
Tall mahonia
U
Umbrella plant
Urbinia agavoides
Usambara violet
V
Variegated laurel
Variegated oval leaf peperomia
Variegated philodendron leaf
Variegated wandering jew
W
Waffle plant
Walking anthericum
Washington hawthorn
Water hickory
Y
Yellow bloodleaf
Yellow-flowered gourd
Yerba linda
Z
Zebra haworthia
Zebra plant
Zinnia sp.
Zucchini squash