The following annuals and biennials are particularly suitable for growing from seed as greenhouse pot plants – note that these are all non-hardy:

• Antirrhinum (Snapdragon)
• Begonia semperflorens (Fibrous-rooted begonia)
• Centaurea moschata (Sweet sultan)
• Coleus
• Exacum affine (Persian violet)
• Humea elegans (Incense Plant)
• Impatiens walleriana (Buzy Lizzie)
• Osteospermum (Cape daisy)
• Pelargonium (Geranium)
• Petunia
• Primula malacoides (Fairy primrose)
• Primula obconica (Primula)
• Primula sinensis (Chinese primrose)
• Psylliostachys suworowii (Pink pokers)
• Schizanthus (Butterfly flower)
• Senecio x hybridus (cvs) (Cineraria)
• Thunbergia alata (Black-eyed Susan)
• Torenia fournieri (Wishbone flower)
• Trachelium caeruleum (Blue throatwort)
• Trachymene coerulea syn. Didiscus coeruleus (Blue lace flower)