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Astrophytum Asterias - Sand Dollar Cactus, Sea Urchin Cactus, SEEDS

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0.10 LBS
Calculated at checkout

Product Description

Choose from:

     10       Seeds      for         $5.00 (Pkt. Size)

   100       Seeds      for       $40.00

   250       Seeds      for       $90.00

   500       Seeds      for     $140.00

1,000       Seeds      for     $220.00



Astrophytum Asterias, Seeds
(Sand Dollar Cactus, Sea Urchin Cactus)
Astrophytum asterias
Species:A. asterias
Binomial name
Astrophytum asterias
Astrophytum asterias is a species of cactus in the genus Astrophytum, and is native to small parts of Texas in the United States and Mexico. Common names include Sand Dollar Cactus, Sea Urchin Cactus, Star Cactus.
A. asterias is small, round, spineless and squat, reaching a height of 2.5–6 cm (0.98–2.36 in) and a diameter of 5–15 cm (2.0–5.9 in). The disc-shaped body is divided into 7 - 10 sections, known as ribs; in the middle of each rib there are woolly areoles. The body is a greenish-brown colour and may appear speckled from its covering of white scales (trichomes).  The flowers of this cactus are yellow with red bases and the outer parts are very woolly. Green to pink oval fruits are produced; the outside coat is covered with woolly hairs.
Reproduction takes place via sexual outcrossing through cross-pollination; star cacti reach sexual maturity after a few years, when they have attained 2 – 3 cm in diameter. Flowers are produced from March to June (the summer season in its native habitat) and fruiting occurs from April to June; the specific pollinators have not been identified but are thought to be insects.
This species is highly prized by cactus enthusiasts and collection of wild specimens constitutes an important threat to the species. The population that once occurred in Nuevo Leon, Mexico was likely extirpated by over-collection. Loss of habitat also threatens this species. Root-plowing and other mechanical and chemical brush control practices as well as conversion of habitat to agricultural fields and urbanization have played roles in the decline of this species. It is thought that known sites in Cameron and Hidalgo Counties have been eliminated as a result of habitat conversion. Star cactus may be cultivated from seed if given the appropriate sandy medium.
The root of the name astrophytum refers to the stars, as in the word “astronomy,” which reflects a somewhat star-shaped appearance that is characteristic of cacti in this genus.  Astrophytum myriostigma is typically found at high altitudes in central and northern Mexico. This lot includes assorted astophytum hybrids.  As one of the most ornamental genuses int he cacti world, each seed is your ticket to a genetic lotttery!  
Astrophytum is cold hardy to about 20 degrees Fahrenheit.  For best results it should be given light shade, although it will tolerate full sun.  During the summer it should be given moderate water and fertilizer, but it should be kept dry starting in October.  An alkaline, porous soil will provide necessary drainage, and watering from below potted cacti so the water wicks up through the soil is recommended. 
How to Grow a Star Cactus
Mist the soil when caring for star cactus babies as overhead watering can damage the tender tissues. They will need to be kept moist until the seedling is robust and at least ½ inch tall.
Astrophytum Cactus Care
Novice gardeners love the ease of cacti care as interior plants. They thrive on neglect, although star cactus plants will need water occasionally. The body will flatten out and turn brown if it is in dire need of water.
Pot them up in a purchased cactus mix. The container should be free draining and unglazed so excess moisture evaporates readily.
Fertilize June to September when caring for star cactus. Reduce the amount of water you give in the dormant winter months.

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