Tropical hibiscus 'Dynamo'

Tropical hibiscus are highly sensitive to phosphorus (the middle “P” number on fertilizers) and an excessive amount will kill the plant. Do not use so-called “bloom fertilizers” on them. Instead tropical hibiscus need a lot of potash to bloom properly (the last number or “K” on fertilizers). Palm fertilizers are widely available and usually have the proper ratio of a medium-low-high NPK ratio along with needed minors.

The pesticide malathion will defoliate tropical hibiscus. Do not use it for pest control.

Try to plant in a location that enjoys full sun and remember to water moderately. Keep in mind when planting that Dynamo is thought of as half hardy, so protect with a row cover whenever the temperatures drop.

Ensure that temperatures are mild and all chance of frost has passed before planting out, as Dynamo is a half hardy plant.

¹ International Hibiscus Society Registration for Dynamo

² Hidden Valley Hibiscus information page for Dynamo