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Hardiness: USDA Zone 8a: to -12.2 °C (10 °F) USDA Zone 8b: to -9.4 °C (15 °F) USDA Zone 9a: to -6.6 °C (20 °F) USDA Zone 9b: to -3.8 °C (25 °F) USDA Zone 10a: to -1.1 °C (30 °F) USDA Zone 10b: to 1.7 °C (35 °F)
Sun Exposure: Full Sun Sun to Partial Shade
Danger: All parts of plant are poisonous if ingested
Bloom Color: Pink
Bloom Time: Late Summer/Early Fall Blooms repeatedly
Other details: Flowers are fragrant Average Water Needs; Water regularly; do not overwater
Soil pH requirements: 5.6 to 6.0 (acidic) 6.1 to 6.5 (mildly acidic) 6.6 to 7.5 (neutral) 7.6 to 7.8 (mildly alkaline)
Patent Information: Non-patented
Propagation Methods: By dividing rhizomes, tubers, corms or bulbs (including offsets)
Seed Collecting: Allow pods to dry on plant; break open to collect seeds Properly cleaned, seed can be successfully stored
This plant will grow in pots and planters and can be used perenially in Maryland. In late october or early november, cover the planter or pot in a plastic garbage bag and place it in an attached garage or area that avoids deep freeze. In early or late May, remove from bag, trim winter growth, leave as is in planter, or separate bulbs or transplant bulbs and you will have many more plants to work with. It propagates exremely well and you can enjoy their beauty in colder areas.
If you do not bring the lilies in, they will die.
The lilies bloom whenever it rains from June till October.
On Mar 24, 2010, khabbab from lahore Pakistan (Zone 10b) wrote:
This one has the largest bloom of all the 3 colors available here. Sadly the bloom does not last more than 36 hour. It self seeds as well and has very large bulb. Blooms mainly after monsoon rains in lahore, pakistan. keeps foliage in winter.
On Jul 2, 2007, calamitynan from Shawnee Mission, KS wrote:
I'm pretty darned easy to please. If a plant grows and blooms, I'm happy! I'm thrilled by the several blooming periods throughout the summer. This lovely pink flower growns alongside the back of my house. The bed was here when I bought the house and I just found out what they were. There's approximately 5-6 ft. of them.
I first thought they were cute, but was disappointed when the flowers didn't last long. THEN ... they all bloomed again. More prolific than the first blooming. Then again, and again, and again.
On Feb 11, 2007, Vaelor from Melbourne, VIC Australia (Zone 9b) wrote:
I found a few bulbs of this Pink Rain Lily growing wild in Brisbane, QLD, Australia. I brought three of them home to Melbourne, VIC, Australia, and potted them. For three years running, it would reach its little green arms skyward, stay looking much like 2-4 blades of grass for a couple of months, then die back again.
This year, summer of 2007, it finally flowered for the first time since I transplanted the bulbs. I can only assume that the especially hot, humid summer we're having here (over 40C/105F on some of the worst days!) has made the bulbs homesick for the sticky tropical heat of northern Australia, and was enough to coax the bloom out. It only came out for a few days, but I just hope this isn't the last I see of it!
On May 31, 2004, duliticola from Longfield, Kent United Kingdom (Zone 8b) wrote:
I collected seed of this bulb from plants growing in the Seychelles, although the resultant plants seem to be hardy down to at least 1 centigrade.
The plants seem to thrive in pots and if the temperature is kept above about 4 degrees centigrade are evergreen. Flowering seems to be triggered by letting the pots dry out for a week or so and then resuming watering. Tap water seems fine for me.
The blooms are 3.5 to 4.25 inches across and the same plant sometimes produces flowers with 6 and 8 petals at the same time. The only thing which stops me giving the plant a 'Positive' rating is that the flowers only last about 4-5 days, (less if it is very sunny). Flowering occurs with me from Spring through Autumn.
This species has been long in the trade. It is delightful as a pot plant. The typical nursery stock is apparently self-sterile. However, with perseverance, and lot of pollen from mixed sources, I have annually (though only a few crosses succeed) gotten a few seed pods. These give rise to seedlings that are typical of parent in color, and at least a few of them appear to be fertile. Will be interesting to see if it is possible to advance the generations.
On Aug 22, 2001, Terry from Murfreesboro, TN (Zone 7a) wrote:
Rain Lilies are so named because they bloom only with rain (they won't be fooled by ordinary tap water, although regular watering is beneficial to foliage growth.) A native of South America, it is found naturalized in the lower South, although it is sterile and doesn't set seed.
Z. grandiflora is sometimes sold as Z. rosea, although the two are very different in growing habits - Z. grandiflora is more cold hardy, with blooms three times as large Z. rosea blooms sometimes have eight petals, while Z. grandiflora has six petals.
Z. grandiflora will benefit from humusy soil, regular water and fertilizer, rewarding you with a display of lavish pink blooms when fall rains start. Bulbs should be lifted and stored after first frost.
This plant has been said to grow in the following regions:
Cochise, Arizona Maricopa, Arizona Phoenix, Arizona (2 reports) Sun Lakes, Arizona Booneville, Arkansas Colton, California Los Angeles, California Mission Canyon, California Mission Viejo, California Santa Ana, California West Covina, California Boca Del Mar, Florida Fruitville, Florida Gibsonia, Florida Homestead, Florida Jacksonville, Florida Kenneth City, Florida Pembroke Pines, Florida Sebastian, Florida Umatilla, Florida Cornelia, Georgia Kihei, Hawaii Fairway, Kansas Fox Chase, Kentucky Baton Rouge, Louisiana Independence, Louisiana Lake Arthur, Louisiana Slidell, Louisiana Zwolle, Louisiana Bel Air, Maryland Florence, Mississippi Elizabeth City, North Carolina Parkton, North Carolina Raleigh, North Carolina Conway, South Carolina Woodlawn, Tennessee Blanco, Texas Cameron Park, Texas Dallas, Texas Dickinson, Texas Grand Prairie, Texas Houston, Texas (3 reports) Huntsville, Texas Macallen, Texas Missouri City, Texas Round Rock, Texas San Augustine, Texas Trinity, Texas Jonesville, Virginia Pleasant Valley, West Virginia