🌱 Morphology
A **stemless and caespitose** hybrid succulent, producing offsets from the base and forming small clumps. It develops a relatively open rosette, approximately **12 cm high and up to 17 cm in diameter**.
The leaves are fleshy, triangular, and spreading, with a flat or slightly grooved upper surface and a concave lower surface, featuring a serrated keel especially visible towards the apex. The epidermis is **rough and densely ornamented with small white tubercles**. On the upper surface, the tubercles are more scattered, while on the lower surface, they are more numerous and can form transverse bands. The margins have fine teeth, and the apex is acuminate.
Its most striking ornamental feature is its **green and golden-yellow coloration**. The intensity and distribution of the yellow can vary considerably between specimens. The tuberculate surface and white pattern of the leaves are clearly related to **Gasteria**, while the triangular and elongated shape of the leaves reflects the influence of the Aloe component. It is, therefore, an intergeneric hybrid **Gasteria × Aloe**.
🌍 Distribution, habitat, and family
This is not a wild species, but an **intergeneric horticultural hybrid** from the **Asphodelaceae** family.
The genus × Gasteraloe brings together hybrids between **Gasteria and Aloe**. 'Green Gold' is documented as an old cultivar that has also occasionally circulated under the name **'Lemon-Lime'**.
❄️ Temperature / USDA Zone — **USDA 9b–11**
Cultivation references place its tolerance approximately between **USDA 9b and 11**, with recommended minimum cultivation temperatures close to **−4 °C**.
☀️ Lighting — **Indicative DLI PAR: 10–16 mol·m⁻²·day⁻¹**
It thrives with **abundant light, partial shade, or filtered sun**. It can tolerate gentle direct sun if gradually acclimatized, but intense radiation can cause a reddish or orange coloration in the leaves and increase stress on the yellow tissues. Some sources specifically note that it can acquire orange tones when exposed to a lot of sun.
As a guiding horticultural objective during growth, a light intensity of **DLI of 10–16 mol·m⁻²·day⁻¹ of PAR** can be maintained.
Insufficient light, conversely, promotes more open growth and can reduce the contrast between green and golden areas.
💧 Growth cycle and watering
**Opportunistic**. It shows greater activity during **temperate seasons**, especially spring and autumn, with a slowdown during thermal extremes. Within the ×Gasteraloe group, it behaves as a plant capable of exhibiting **summer dormancy**, so during periods of intense heat, it is advisable to observe if it continues to grow before maintaining a frequent watering schedule.
Watering should be **abundant**, allowing the entire substrate to get wet, and then it should be **allowed to dry completely before watering again**.
During summer, if temperatures are very high and the plant reduces its activity, watering should be significantly spaced out. In winter, watering should also be reduced when temperature and light decrease.
🌸 Flowering
Flowering occurs mainly **in late winter and early spring**. It develops a lateral inflorescence with **tubular flowers in orange or reddish tones**.
🌿 Nutrition
During active growth, **Desert CHOICE® Aloes, Haworthias & Co.** is recommended, with an **NPK 3-2-8 (Ca-Mg 8-1)** formulation and micronutrients.
Root application is done once a month during vegetative growth with irrigation water. During the preparation of flower buds and flowering, it can be supplemented with **Desert CHOICE® Floración**.
This is an inimitable xerophytic plant grown in Madrid in a technological square pot and with substrate activated with mycorrhizal fungi and biofungicides.