Guettarda krugii (Frogwood)

Guettarda krugii (Frogwood) white flower close up on green foliage during a sunny day
Guettarda krugii (Frogwood) white flower with five petals nestled among thick textured green leaves

Botanical name: Guettarda krugii

Common name: Frogwood

Family: Rubiaceae

Origin: Caribbean

USDA Plant Hardiness MapLarge shrub 5-10 ft tallFull sunWatering: Moderate. Water when top soil feels dryWatering: Regular. Let topsoil dry slightlyWhite, off-white flowersEthnomedical plant.
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These plants prefer full sun to partial shade, and thrive in a wide range of soils. Guettarda krugii prefers regular water, but can survive on moderate water or even drought conditions. Although some frogs will become dormant during a drought, they will spring to life with new foliage when water is available again.

These plants burst into bloom with white, cream, or off-white flowers. Flowering can last from March to October and occurs in cylindrical or spiky clusters up to 3-4 inches long. The flowers are followed by small round fruits containing two or three seeds each.

Frogwood plants have long been recognized as an important ethnomedical plant. Extracts of frogwood have demonstrated antimicrobial, anti-inflammatory, and antioxidant activities, which have been used to treat various conditions.

Frogwood plants can be grown in pots, making them a great choice for those living in colder climates, USDA Zones 9-11. When growing Frogwood in a pot, make sure to choose one that is at least 10 inches in diameter. It is important to keep the soil evenly moist and to have proper drainage. Make sure to provide adequate support as they grow, to help them retain their shape, or use a tomato cage. Apply fertilizer once a month during the period of active growth in spring and summer. Move the pot to a sheltered spot for winter, as the plant is not winter-hardy.

Similar plants: Guettarda krugii (Frogwood)


Guettarda krugii (Frogwood) bright green leaves on dense branch close up for botanical study.
Guettarda krugii (Frogwood) showing thick oval foliage with textured surfaces on a healthy woody branch.
Guettarda krugii (Frogwood) with lush vibrant green leaves in a close up plant shot
Guettarda krugii (Frogwood) showing thick and wide green leaves in a detailed plant view
Guettarda krugii (Frogwood) with vibrant green leaves in a dense close up plant view.
Guettarda krugii (Frogwood) displays thick green leaves with prominent veins and a smooth texture.
Guettarda krugii (Frogwood) white flower with large oval green leaves in close up
Guettarda krugii (Frogwood) white flower nestled among broad green leaves with visible vein detail


Link to this plant:
https://toptropicals.com/catalog/uid/guettarda_krugii.htm