Agave havardiana - 10 seeds
Agave havardiana - 10 seeds

Agave havardiana - 10 seeds

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Agave havardiana (Havard's Century Plant) is an acaulescent midsized species forming rosettes low to the ground, sometimes creating suckers but not forming large colonies like some other species. The short, silver-grey to nearly white triangular leaves of Agave havardiana are up to 60 cm long, about three to four times longer than broad, with teeth along the margins and at the tip. When the plant matures and blooms the tall candelabra inflorescence rises to over 7 metres bearing yellow to yellow-green flowers that attract birds and bees. Its leaves are broader and more chalky in colour to Agave parryi which it superficially resembles and it is an altogther larger and more imposing plant.

Agave havardiana is a wonderful cold-hardy Agave that with care and the correct cultivation will survive in UK gardens through the cold wet rigours of a British winter. It suckers, but tends to be slow to sucker, so easy to keep control of. Because of its compact size, plus its low water use and low maintenance, it is considered a good landscaping plant for desert residential landscaping.
Growth rate: Slow to medium growing, but speeds up considerably given the best conditions. 
Exposure: They do well in full sun or a lightly shaded area with afternoon shade.
Soil: They do best in very well-drained, sandy or gravely soil. As an ornamental it is also grown in containers where it stays smaller than its outdoor brethren. In pots they need a very porous mix soil (e.g. 2 parts peat moss to 1 part loam to 1 part of pumice). 
Repotting: Use pot with good drainage.
Fertilization: They grows quickly if kept well nourished with a slow release fertilizer specifically formulated for cactus and succulents applied once or twice a year (poor in nitrogen), including all micro nutrients and trace elements.
Hardiness: Agave havardiana is hardy to -7 to -12° C depending by clones