Moss Rose (Portulaca grandiflora 'Sundial Mix')

Common names:
Give a thumbs up Moss Rose
Give a thumbs up Rose Moss

General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Annual
Sun Requirements: Full Sun
Full Sun to Partial Shade
Water Preferences: Mesic
Dry Mesic
Minimum cold hardiness: Zone 9a -6.7 °C (20 °F) to -3.9 °C (25 °F)
Plant Height: 4-8 inches
Plant Spread: 8-12 inches
Flowers: Showy
Flower Color: Lavender
Bloom Size: Under 1"
Flower Time: Summer
Late summer or early fall
Suitable Locations: Xeriscapic
Uses: Will Naturalize
Resistances: Drought tolerant
Propagation: Seeds: Provide light
Self fertile
Needs specific temperature: 68-77F
Days to germinate: 10-15
Depth to plant seed: Barely cover.
Start indoors
Can handle transplanting
Other info: Transplant when large enough to 3" pots. Harden off 10-15 days. Space 12" apart after last frost.
Pollinators: Self
Various insects
Containers: Suitable in 1 gallon
Miscellaneous: Tolerates poor soil


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Posted by Newyorkrita (North Shore, Long Island, NY ) on Sep 4, 2013 5:16 PM

This is one of the best annuals one can choose for any difficult dry area or problem spot in the garden. Never needs watering and just blooms and blooms and blooms. Such pretty and colorful flowers.

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Posted by dmac (NC) on Sep 29, 2011 7:02 PM

Love this plant and I have great success sowing it in place outside after last frost date. The flowers remind me of the crepe paper parade float flowers. Mine have survived some droughts and my poor watering schedule with flying colors. It's a bit tedious but you can collect seed from them as well.

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Posted by BookerC1 (Mackinaw, IL - Zone 5a) on Jul 9, 2012 3:26 PM

A student gave me one potted in a little coffee cup, which I set on my windowsill. It lived and bloomed for almost 3 years, until the cat finally knocked it down while we were out of town for a week.

Great for areas with dry or poor soil. Very drought-tolerant, and blooms non-stop without deadheading. Great in the ground or in containers. The fleshy stems and leaves look as if they'd be pointy, but they are actually quite soft.

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Posted by Natalie (North Central Idaho - Zone 7a) on Sep 7, 2014 10:24 PM

I really love this plant, especially for areas that are very hot and dry, with poor soil. It is very easy to grow from seed, which is a bonus for me. It also reseeds nicely, which is good if you have it planted in a hard-to-reach area, as I do. The only problem I've had with it so far is that the deer seem to think it is delicious. I've planted seeds three times this year, and luckily it got to blooming size each time before the deer did away with it. I hope some seeds dropped before they ate it! If not, I'll try again next year. Luckily, it's a fast grower and it seems to thrive on neglect.

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