Silphium — 7 species

Most Silphium are pet-safe. Of the 7 Silphium species we cover, 4 are non-toxic on the ASPCA list and 3 carry a toxic or mildly-toxic rating. Even so, confirm the individual species before trusting it around pets.

Most Silphium do best in direct sun. If yours stretches toward the window or loses its variegation it wants more light; scorched or bleached leaves mean it is getting too much direct sun.

Some Silphium suit more experienced growers — several want strong light, sharp drainage or a specific seasonal rhythm. Check the individual species page for the exact regime.

Growli's care library covers 7 Silphium species and varieties — browse them all above. They share a similar light, water and soil pattern, so once you learn one Silphium, the rest follow closely.