Geranium 'Rise and Shine' has purple-blue cranesbill flowers with white centres from June until frost! One of the best of all hardy geraniums.

Geranium 'Rozanne' has purple-blue flowers from June until frost! One of the best of all hardy geraniums.

Geranium 'Salome' has luscious lavender and plum purple flowers atop rambling plants with chartreuse foliage.

Geranium 'Sandrine' has large, magenta, cranesbill flowers with black centres atop chartreuse foliage that deepens to light green.

Gethyllis barkerae has flattened, hairy, grey-green leaves that lie close to the ground and palest pink to white, fragrant flowers.

Gethyllis cavidens has a white stem covered in black spots that opens into blue-green, twisty, tentacle-like leaves.

Gethyllis oligophylla has cool grey-green spiralled leaves and white, fragrant flowers.

Gethyllis oliverorum has cool grey-green spiralled leaves and white, fragrant flowers.

Gillenia trifoliata is worthy of more attention with elegant white flowers with wine-red sepals like a Gaura for shade.

'Pink Profusion' is a special pink-flowered form of Gillenia with wine-red sepals.

Glaucidium palmatum is a choice Japanese woodlander with large, silky, pale purple-pink blossoms over attractively textured foliage.

Glaucidium palmatum 'Album' is a choice Japanese woodlander with large, silky, creamy white blossoms over attractively textured foliage.

Gunnera manicata is a monster perennial often called giant rhubarb or dinosaur food. with heavily textured, sandpapery, palmate leaves up to six feet across!

The oak fern, Gymnocarpium dryopteris, is a native garden-worthy fern with beautiful dainty fronds in shades of vibrant green.

Haemanthus albiflos is a rare bulb with leathery, deep green leaves producing a white paint brush-like flower head with yellow stamens.

Haemanthus amarylloides ssp. polyanthus is a beautiful pink-flowered species with red stems.

Haemanthus amarylloides ssp. polyanthus is a beautiful pink-flowered species with red stems.

Haemanthus barkerae is a cute bulb with cheerful pink flowers and two elliptic leaves with attractive mottling.

Haemanthus barkerae Grey Leaf is a cute bulb with cheerful pink flowers and two elliptic, greyish leaves with attractive mottling.

Haemanthus coccineus, known as the blood flower, blood lily or paintbrush lily, has dramatic orange-red flowers.

Haemanthus coccineus Baviaanskloof has dramatic orange-red flowers and burgundy speckling on the leaves.

Haemanthus coccineus Bulletrap has dramatic orange-red flowers and hails from a desert habitat.

Haemanthus coccineus Klawer has dramatic orange-red flowers that look like a shaving cream brush.