• Wild Parsnip

    Pastinaca sativa

    Wild Parsnip is a biennial with yellow umbels whose sap can cause severe phototoxic skin reactions. It spreads by seed and is invasive in many areas.

  • Italian Arum

    Arum italicum

    Italian Arum is a tuberous perennial with striking spring spathes and bold foliage. It prefers shade to part shade and can naturalize via tubers.

  • Ornamental Allium

    Allium spp.

    Ornamental alliums are bulbous perennials grown for rounded flower heads. They prefer full sun and well drained soil and bloom in late spring to early summer.

  • Poison Ivy

    Toxicodendron radicans

    Poison Ivy is a North American plant that can grow as a vine shrub or groundcover and produces urushiol oil that causes allergic skin reactions.

  • English Ivy

    Hedera helix

    English Ivy (Hedera helix) is an evergreen climbing vine often used as a shade groundcover or to clad walls. It tolerates a wide range of soils but can be invasive.