YardMate
Dragon's-Head Lily
Gladiolus dalenii
Easy · Beginner friendlyAbout Dragon's-Head Lily
Parrot Gladiolus is a southern African species gladiolus growing 2 to 4 feet tall, producing tall spikes of bright orange, red, yellow, or pink hooded flowers in summer. A parent species of modern hybrid gladiolus, the species form is hardier and longer-lived in American gardens than garden hybrids, and naturalizes in mild-winter zones along the Gulf Coast and Southeast.
- Cut-flower
- Drought-tolerant
How to care for Dragon's-Head Lily
Watering
- Springevery 5 days
- Summerevery 3 days
- Fallevery 10 days
- Winterpause watering
Soil · Well-draining
- Main mixLoam + coarse sand 3:175%
- DrainageGravel25%
Sharp drainage matters most — bulbs rot in wet soil while dormant.
FERTILIZER
Balanced Feed 14-14-14
An even feed covers all three needs at once, keeping leaves, roots and blooms moving together with nothing pushed out of balance.
- Nitrogen · Leaves
- Phosphorus · Roots + Blooms
- Potassium · Strength
- Springevery 30 days
- Summerevery 45 days
At a Glance
- NativeAfrica, Western Asia
- Height3–5 ft (0.9–1.5 m)
- Spread0.5–1 ft (0.2–0.3 m)
- Flower colorOrange, Red, Yellow
- Foliage colorGreen
- SoilLoamy, Well-drained, Rich
- LocationsYard
Bloom time
BLOOM CYCLE
Peak bloom
Jun–Aug
Tall hooded orange, red, yellow, or pink spikes in summer
Toxicity
Humans Slight · Pets Slight
unidentified irritants
Slight
- Bulb
- Ingestion
EXPOSURE Eating bulbs.
EFFECT Vomiting and diarrhea.
NOTE Documented concern for humans: Vomiting and diarrhea.
Slight
- Bulb
- Ingestion
EXPOSURE Eating bulbs.
EFFECT Vomiting, drooling, and lethargy.
NOTE ASPCA lists Gladiolus as toxic to dogs, cats, and horses; corms are the most toxic part.
Slight
- Bulb
- Ingestion
EXPOSURE Eating bulbs.
EFFECT Vomiting, drooling, and lethargy.
NOTE ASPCA lists Gladiolus as toxic to dogs, cats, and horses; corms are the most toxic part.
Educational information, not medical or veterinary advice. If exposure is suspected, contact a doctor or veterinarian.
DISTRIBUTION
- Native
- Introduced
- Africa
- Western Asia
History
Gladiolus dalenii has the widest natural range of any gladiolus, extending from South Africa north through tropical Africa to the Arabian Peninsula and Madagascar. The Dutch botanist Petrus Cornelius Van Geel described it in 1828. Its tall, strongly hooded orange, red, or yellow flowers drew the attention of European plant breeders: in 1841, the Belgian horticulturist Hermann Beddinghaus and later William Herbert in England began crossing it with G. cardinalis, G. oppositiflorus, and G. tristis, producing the large-flowered summer gladiolus strains (once grouped as G. x gandavensis) that underlie all modern cut-flower cultivars.
In African traditional medicine, corms of various populations were used for dysentery and colic. Modern 'wild-type' cultivars such as 'Boone' (a cold-hardy yellow Virginia heirloom) trace directly to this species.
Native from South Africa to Ethiopia, introduced to European gardens in the 1820s and to American Southern gardens in the Victorian era. A parent of many modern Grandiflorus hybrid gladioli. Still grown in Southern heirloom gardens where it persists and multiplies for decades, unlike hybrid gladioli that need annual replanting.
Symbolism & meaning
What It Symbolizes
The Dragon's-Head Lily carries wild strength, its African heritage giving it a hardiness and vigor that modern hybrid gladioli cannot match. As ancestral parent of nearly every garden gladiolus, it marks the untamed root from which centuries of breeding sprang. To grow this gladiolus is to honor the wild original — the fierce, sun-loving species that gave the cultivated world its towering flower spires.
- Wild strength — hardier than modern hybrids
- African heritage — ancestor of modern garden gladioli
Where the Name Comes From
The name Dragon's-Head Lily describes its lily-like flowers. 'Gladiolus' from Latin 'gladius' meaning sword, for the sword-like leaves; 'dalenii' honors Cornelis Dalen (1766-1852), Dutch horticulturist.
Uses & Fun Facts
- Dragon's-Head Lily flowers nourish foraging bees and pollinators
Related plants
More Gladiolus plants
Eastern GladiolusGladiolus communis
Late BobbejaantjieGladiolus nanus
Marsh AfrikanerGladiolus tristis
GladiolusGladiolus x gandavensis
Plants with similar care
Chinese AbeliaAbelia chinensis
Fragrant AbeliaAbelia mosanensis
Large-Flowered AbeliaAbelia uniflora
Glossy AbeliaAbelia x grandiflora
Frequently asked questions
How often should I water Dragon's-Head Lily?
Water about every 5 days during the growing season, and always let excess water drain away.
How much light does Dragon's-Head Lily need?
Full sun: 6+ hrs direct. Watch the leaves — scorching or stretching means the light needs adjusting.
Is Dragon's-Head Lily toxic to cats or dogs?
Pets Slight (Dogs Slight · Cats Slight) Educational information, not medical or veterinary advice. If exposure is suspected, contact a doctor or veterinarian.
Is Dragon's-Head Lily easy to grow?
Yes — it is considered an easy, beginner-friendly plant.
When does Dragon's-Head Lily bloom?
It typically blooms Jun–Aug in the Northern Hemisphere.
YardMate
Identify any plant in seconds
Snap a photo — YardMate names the plant, diagnoses problems, and reminds you when to water.
Download on the App Store