No, alpines are not the same as succulents. The two groups overlap a little, but they are not the same thing. Look at a tray of mixed alpines at the garden center and you will see the proof. Some plants are fat, fleshy rosettes that look like tiny green cabbages. Others are grassy, leafy, or wiry plants with thin foliage. That one tray is the clearest picture of alpines versus succulents you can find.
The mix-up comes from two very different kinds of label. The word alpine tells you where a plant grows. It means a plant from high mountain ground, often above the tree line. Up there a plant has to cope with thin soil, cold, and harsh wind. The word succulent tells you how a plant is built. It means a plant that stores water in thick, fleshy leaves or stems so it can ride out a dry spell.
So one label is about place. The other is about structure. A plant can be one, both, or neither. That is why the two words do not line up, and why you cannot just swap one for the other in your head.
Where they cross over you get alpine succulents. These are plants that grow high in the mountains and store water in fleshy tissue too. The two best examples are Sempervivum and Sedum. You may know them by their old names, the house leek and the stone crop. The sempervivum sedum pair gives you tough little rosette and mat plants that shrug off drought with ease. These are the alpines most people picture when they think the whole group is fleshy. But they are only one corner of it.
Most alpines are not succulent at all. Look at Saxifraga, with its tight cushions of small green leaves. Or look at Pulsatilla, the pasque flower wrapped in soft hairs. Thrift, the pink sea thrift, makes grassy tufts with no fleshy water store. These plants handle mountain life with other tricks. They use deep roots, hairy leaves, or low compact shapes that duck under the wind. None of them keep a water tank in their leaves the way a succulent does.
This matters for how you care for them. Both groups want the same two basics, and you can give them that with little fuss. They need sharp drainage so their roots never sit in wet soil. They also want plenty of sun. A gritty mix and a bright spot keep nearly every alpine you own happy, fleshy or not. Get those two right and you are most of the way there.
If the leaves are fat and fleshy, you can leave the plant alone for weeks. If the leaves are thin or grassy, check the soil more often in summer heat.
The real split shows up in how you water them. Succulent alpines like your sempervivum and sedum hold water in their leaves. They can ride out a long dry spell, so you can leave them be for weeks at a time. Non-succulent alpines have no such store. They dry out faster when the heat comes.
So water your saxifraga, pulsatilla, and thrift a little more often through summer. Check them on hot days, and feel the soil before you reach for the can. If you treat the whole tray as one group and forget about it, the thin-leaved plants will crisp up first while the fleshy ones still look fine. The whole point of alpines versus succulents is this care split. Sort your plants into fleshy and not, and you will know how much hands-off care each one can take.
Read the full article: Alpine Plants: A Complete Grower's Guide
