Each issue we ask five horticulture experts to list their favourite plant types on a selected theme.

Previously we would only ask for two favourites each to be listed, however, we have expanded their initial selection to five favourites from which they choose their top two to focus upon.

The decision can depend upon many factors such as soil, climate, drought tolerance, aesthetics or just plain personal preference!

Begonia hybrids and species – Cane Begonia
Epidendrum ibaguense – Crucifix Orchid
Eucharis grandiflora – Eucarist Lily
Neomarica caerulea – Blue Walking Iris
Viola tricolor cultivars – Garden Viola

Hibiscus rosa–sinensis 'Rosalind' – Rosalind Hibiscus
Mandevilla 'Aloha Regal Ruby' – Regal Ruby Mandevilla
Plumeria pudica – Hammerhead Frangipani
Plumeria rubra 'Denpasar' – Denpasar Frangipani
Plumeria stenophylla – White Magic Frangipani

Boronia keysii – Key's Boronia
Isopogon anemonifolius – Drumsticks
Phebalium woombye – Phebalium
Philotheca difformis subsp. smithiana – Small Leaved Wax Flower
Tripladenia cunninghamii – Bush Lily

Hippeastrum papilio – Butterfly Amaryllis
Impatiens walleriana – Impatiens
Lobelia trigonocaulis – Forest Lobelia
Phalaenopsis amabilis – Moth Orchid
Tacca leontopetaloides – Native Bat Plant

Begonia Semperflorens Group 'Thousand Wonders' – Bedding Begonias
Begonia x hybrid 'Dragon Wing' – Angel Wing Begonia
Hydrangea macrophylla cultivars – Hydrangea
Petunia hybrids – Petunia
Stevia rebaudiana – Sweet Leaf