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Hardiness: USDA Zone 7a: to -17.7 °C (0 °F) USDA Zone 7b: to -14.9 °C (5 °F) 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
Danger: N/A
Bloom Color: Bright Yellow
Bloom Time: Late Winter/Early Spring Mid Spring Late Spring/Early Summer Mid Summer
Other details: Drought-tolerant; suitable for xeriscaping Self-sows freely; deadhead if you do not want volunteer seedlings next season This plant is resistant to deer
Soil pH requirements: 6.6 to 7.5 (neutral) 7.6 to 7.8 (mildly alkaline) 7.9 to 8.5 (alkaline)
Patent Information: Non-patented
Propagation Methods: From seed; direct sow outdoors in fall From seed; sow indoors before last frost From seed; direct sow after last frost
Seed Collecting: Collect seedhead/pod when flowers fade; allow to dry Allow seedheads to dry on plants; remove and collect seeds
On Jun 7, 2009, shindagger from Oklahoma City, OK wrote:
This plant looks great from spring untill frost, blooming nonstop. It hates too much moisture and I loose some in the spring rains but it reseeds so aggressively that I have to pull a lot of them anyway. Grows in pure sand or the cracks of the sidewalk, very hardy and stands up to heat and dry conditions. Each plant is an upright, big bouquet of yellow/grey.
We have really pretty weeds in Tucson and this is one of them. It survives well on the meager rains we have received during a three-year drought. During our hottest months, it stops flowering, The rains bring this one back to life. In my garden, the foliage tends to grow to 5" to 8", with leafless flower spikes extending to 15" to 20". The grey-green foliage contrasts the bright yellow composite flowers stunningly! The foliage is pubescent and reminds me of 'Dusty Miller.' It self-sows as advertised...but I didn't have success getting seedlings from the seed I harvested and broadcast in a different bedding area. This is a gem if you are looking for some color in a 'grey garden.' Bedding idea: It looks great intermixed with Verbena gooddingii and Penstemon parryi.
My marigolds that I planted in the spring from the previous year's seeds are still growing in September. They have tolerated high,dry summer heat and have shaded some less heat-tolerant plants in the garden, allowing them to endure.
By October, I suspect the marigolds' blooms will have stopped coming, and I will remove them and start over again with their seeds in the spring.
Regional...
This plant has been said to grow in the following regions:
El Mirage, Arizona Maricopa, Arizona Mesa, Arizona Phoenix, Arizona Scottsdale, Arizona Tucson, Arizona Yuma, Arizona Lucerne Valley, California Oklahoma City, Oklahoma Big Bend National Park, Texas