LITHOPS are PARTLY SUBTERRANEAN, with only the clear ‘window’ in each leaf tip exposed above soil. A type of optical system exists whereby a layer of apical tissue rich in calcium oxalate crystals acts as a filter to intense sunlight before it reaches the thin CHLOROPHYLLOUS LAYER BELOW. They are also called MIMICRY PLANTS as they show a striking similarity to their background rocks and are difficult to detect when not in flower. These are the COMMONLY KNOWN AS PEBBLE PLANTS OR LIVING STONES. each species is associated with one particular type of rock formation and occurs nowhere else. Its soil-embedded, subterranean growth form also reduces the need for chemical defenses against herbivores.
PREFERRING QUARTZITE AND LAVA ROCK TO GROW ON WITH SOME LIMESTONE, IT IS ANOTHER SOUTH AFRICAN STONE PLANT. It can GROW QUITE LARGE for a living stone plant with leaf sizes nearing 2″ across at their widest point. Normally growing singly, it can form clumps of up to 10 leaf pairs. The upper surface of its leaves can range from brownish to red or pink tones, occasionally picking up bits of orange. The sides of the leaves are often a dull grey or greyish-brown, almost terracotta tone. Its flowers are usually bright yellow.
Usually WITHOUT WINDOWS AND WITH RARE DUSKY DOTS, but with an OBSCURE NETWORK of SIMPLE AND FORKED GROVES AND LINES and NUMEROUS IRREGULAR SMALL ISLANDS ENCLOSED BY GROVES. MARGINS are irregularly incised with narrow lines tapering out of the grows. The color of the margins and face island comprises opaque brown or buff or greyish, reddish, pinkish or orange-brown. Channels and grooves are opaque or very obscurely translucent greenish brown or grey, greyish or brownish green, orange or reddish brown or red. Lines dull dark red. Shoulders as for the face dull grey.
Lithops Hookeri is a medium to very large species, up to 46 X 35 mm, usually about 30 X 23 mm. with up to 10 or more heads (mostly 2-4). Bodies (paired leaves): Obconical, truncate, top surface flat to slightly convex. The face is elliptical more or less equal. The fissure is shallow 3-7 mm, the lobes are conjunct. This species is characterized by an obscure network of simple and forked groves and lines. Margins are irregularly incised with narrow lines tapering out of the grows. This species is quite variable and the colors and face pattern varies considerably in plant from different provenance.
Here are some easy tips to take care of Lithops Hookeri, it is also the same as other lithops types, so don’t panic.
Lithops NEEED MUCH LESS WATER than other succulents. In the WINTER, when they are splitting their leaves, they should NOT BE WATERED AT ALL. In the SUMMER, WATER ONLY WHEN LEAVES BEGIN TO WRINKLE. When beginning to water again in the SPRING, wait until the outer leaves have shed, and the new growth can be seen.
The BEST WAY to tell if your Lithops need water during the time when it’s okay to water, IS BY OBSERVING THEM. They’ll start wrinkling or puckering, or maybe even appear to be sinking deeper into the pot. If you give them a gentle squeeze, they feel softer than when hydrated.