Vanilla

Overview

Vanilla is a climbing orchid with thick green stems and leaves. Its flowers last a single day and must be pollinated by hand in Hawaiʻi. Pollinated flowers grow into long green pods that are cured for months to develop their flavor.

History

Native to Mexico and Central America.

Growing on Kauaʻi

• Needs warmth, humidity, partial shade, and a support to climb.
• Grows best in a loose, mulch-rich root zone.

Planting and propagation

• Plant cuttings with several nodes at the base of a support, with the lower nodes covered in mulch.
• Tie the vine to the support until it attaches.

Care and maintenance

• Loop vines back down when they reach 6–8 ft so flowers stay within reach.
• Mulch heavily; vanilla roots live mostly in the mulch layer.

Role in the guild

Train vanilla up gliricidia or another support tree in the partial shade of a cacao guild.

Harvest

Hand-pollinate flowers in the morning on the day they open. Pods take about 8–9 months to mature; pick them as the tips start to yellow, then cure them by sweating and slow drying over several months.

Uses

• Food: cured pods for flavoring.

Problems to watch

• Root and stem rot in poorly drained conditions.
• No fruit without hand pollination.

General guidance for Kauaʻi; conditions vary by site. Check any new plant at plantpono.org before planting.