The genus Agave is treated here in a wide sense to include taxa previously treated as belonging to the genera Manfreda, Prochnyanthes, Polianthes and Pseudobravoa. Not all botanists are happy with this treatment, with some feeling that these genera should remain distinct, at least until further studies have been carried out. In addition, given the high species diversity found in Agave, some feel that an alternative approach could be the recognition of several smaller genera within the current circumscription of Agave[
Agave gracielae is an evergreen, short-stemmed, succulent plant forming a rosette of leaves that can be 16 - 60cm tall and 35 - 75cm in diameter. Around 65 - 230 leaves are produced on mature plants each of which can be 13 - 55cm long and 12 - 15mm wide near the base. After several years of growth, a flowering stem that can be around 1.5 - 2.5 metres tall is produced, after which the rosette will die. However, the plant usually produces a number of young plants around its base that will develop as new plants.
The plant is harvested from the wild for local use as a food. It is also grown as an ornamental for which it is both harvested from the wild in very small quantities and also propagated from cultivated plants
Even though Agave gracielae has a restricted range, it is abundant and there are no threats causing declines in the population. It also occurs with in a protected area. The plant is classified as 'Least Concern' in the IUCN Red List of Threatened Species(2019)[
Many Agave species have strong, sharp spines on the leaves and leaf tips.
In theory at least, the flowers, nectar, immature flowering stem and the centre of the rosette of all Agave species is edible and, with proper preparation, can provide a sweet, tasty foodstuff. Some species, however, contain relatively high levels of saponins (which makes them taste bitter) and some other compounds which can cause bellyache, and so these would only be eaten in times of desperation. In addition, many people may find these foods to be strongly laxative the first few times they eat them[
Southern N. America - central Mexico (Querétaro, San Louis Postosí)
Calcareous rocks in pine, oak and cloud forests; at elevations from 1,200 - 2,400 metres[
|Conservation Status||Least Concern
|Cultivation Status||Ornamental, Wild
Agave species are found mainly in the arid and semi-arid regions of southwestern N. America, especially in Mexico, extending from the warm temperate zone to the tropics often at moderate elevations. Many species can withstand at least a few degrees of frost, but only in drier regions and where soils are very well-drained.
Agave species generally require a sunny position, succeeding in most soils of medium-fertility so long as they are very well-drained. Most species are undemanding as to the soil pH, though those found in the wild on limestone soils will grow better in neutral to alkaline conditions. Plants are generally very tolerant of dry conditions and of extended periods of drought[
Most Agave species are monocarpic, individual rosettes living for a number of years without flowering before sending up an often very large flowering stem and then dying after flowering and setting seed. This species, however, produces a number of new rosettes from suckers or offsets during its lifespan and these new plants will continue to grow after the death of the parent plant. Over time, some species can form extensive clonal colonies by this means[
Individual plants take about 7 - 15 years in their native habitat, considerably longer in colder climates, before flowering[
Members of this genus are rarely if ever troubled by browsing deer[
]. The floral buds are cooked and eaten as a vegetable[
The young inflorescences are cooked and eaten as sweets[
Seed - surface sow in a container in a light position. The seed usually germinates in 1 - 3 months at 15 - 20°c[
]. Prick out the seedlings into individual pots of well-drained soil when they are large enough to handle and grow them on in a sunny position until they are at least 10cm tall before planting out.
Offsets and suckers can be potted up at any time they are available.
Bulbils, where produced, are an easy method of propagation. Simply pot them up and plant out at the beginning of a growing season when they are 10cm or more tall.
If you have any useful information about this plant, please leave a comment. Comments have to be approved before they are shown here.