Fortnight Lily (Dietes Grandiflora) is a perennial herb in the Iridaceae family with easy care difficulty. It requires moderate watering and full sun or partial shade light in USDA hardiness zones 8-11. This plant is safe for cats and dogs.

Dietes grandiflora is an evergreen, rhizomatous perennial plant known for its sword-like leaves and delicate, pale yellow flowers with purple markings.

Fortnight Lily

Fortnight Lily

Dietes Grandiflora

Dietes grandiflora is an evergreen, rhizomatous perennial plant known for its sword-like leaves and delicate, pale yellow flowers with purple markings.

Quick Facts

Type
herb
Lifecycle
perennial
Care Difficulty
Easy
Water Needs
Moderate
Light
Full Sun, Partial Shade
Hardiness Zones
8-11

Safety

🐕
Pet Safe
👶
Child Safe
Non-Toxic

Growing Conditions

Soil Types:loamy, sandy, well-drained
Indoor:No
Outdoor:Yes
Garden Use:groundcover, specimen, erosion control

Care Calendar

Monthly care tasks for Fortnight Lily

Jan
Prune
Feb
Fertilize
Mar
Repot
Apr
Water+
May
...
Jun
...
Jul
...
Aug
...
Sep
...
Oct
...
Nov
...
Dec
...

Expert Care Tips

Pro tips from botanists and plant experts

Watering Tip

Check soil moisture by inserting your finger 1 inch deep. Water only when the top layer feels dry to prevent overwatering.

Humidity Trick

Group plants together to create...

Growth Hack

Rotate your plant every...

Photo Gallery10+ photos

Fortnight Lily
Fortnight Lily detail

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Taxonomy

Family:Iridaceae
Genus:Dietes