Origin and Habitat, Southern Description: Euphorbia knuthii is a dwarf spiny succulent shrublet with a tuberous main root, which continues into a serpentine caudex, freely branched from the top. It is sometimes accompanied by a number of underground rhizomes. It is closely allied to Euphorbia squarrosa, and Euphorbia Schinzii. It blooms in mid to late summer and the seed capsules ripe about one month later. Cultivation and Propagation: Euphorbia knuthii is an easy ornamental plant to grow, and is a particular favorite of caudiciform plant enthusiasts. Cultivation of this plant is the same as that for the other tuberous varieties of Euphorbia, (e.g. Euphorbia stellata, Euphorbia decidua, etc.), but it is the easiest of all caudiciform Euphorbias to propagate from cutting. It tolerates any conditions (it is practically indestructible), surviving extended neglect and relatively low light. Stem pruning: Every year or two in very early spring, trim off all of the stems, cutting them back to the soil line (or to the roots if you grow your plants with the roots partially exposed). After this pruning, allow the plant to heal at least a week to ten days before watering it. The heavy pruning encourages the growth of many additional branches and keeps the length of each branch comparatively short, and uniform. Exposure: full sun to light shade exposures, Watering: Water regularly during the active growing season. No water should ever be allowed to stand around the roots. Keep almost completely dry in winter. Even though it is extremely drought tolerant, during the active growing season it is best to keep its soil reasonably moist, watering it about once every week. In summer it will also tolerate lots of water Hardiness: tolerate temperatures down to –6ºC and even a little snow. (USDA Zones 9-11).
Please note: All Landscape Ready plants that are in a 6-inch pot or larger WILL NOT come with a pot as it will be shipped bare root.
Please note: Our large plants are many years old, and as a result, they might have minor scaring but will arrive 100% healthy and looking great.
Please note: Our large plants are shipped bare root. They are also many years old, and as a result, they might have minor scaring but will arrive healthy and looking great.
Please note: All perennial drought tolerant plants 6 inch and larger plants will be shipped bare root. Before sending perennial plants, we often trim the leafy parts and remove flowers or buds. This helps them survive shipping and adjust to transplanting better. Perennial plants shipped Mon - Wed only.
If you live in a cold climate and are expecting temperatures below 40 degrees within the next five days after placing your order, we highly recommend adding aheat packto your order. If you do not order a heat pack, we do not send one with your order.
**FREE HEAT PACK WITH ORDERS OVER $50 before taxes and shipping- BY REQUEST ONLY, PLEASE MAKE A NOTE ON YOUR ORDER.
To prevent plants from freezing while in transit, orders placed for areas with extreme severe freezing temperatures will be held for shipment until it is safe to ship.
We guarantee our premium plants will arrive happy and healthy. If not we will replace them for free.
What makes us different is the passion for highest quality plants and the attention to the detail on all we do here at Planet Desert. We are confident in the quality of our products. That’s why all our plants have a 100% satisfaction guarantee.
If you are not 100% satisfied with your purchase, you can return the product and get a product refund or exchange the product for another one, be it similar or not. Shipping charges may apply.
You can return a product for up to 14 days from the date you purchased it. Please submit photos with your order number to info@planetdesert.com to initiate this request and receive next steps for processing. Shipping fees may apply.
Any product you return must be in the same condition you received it and in the original packaging. Please keep the receipt.
FREE SHIPPING ON ALL ORDERS OVER $69 in the Continental US.
Any plant that is 6" and larger that is not in our Houseplant category will be shipped bare root (without a pot).
What makes us different is the passion and the attention to detail in all we do here at Planet Desert. We are confident in the quality of our products. That’s why all our plants have a 100% satisfaction guarantee.
If you are not 100% satisfied with your purchase, you can return the product and get a refund or exchange it for another one — similar or not. Shipping charges may apply.
You can return a product for up to 14 days from the date of purchase. Please submit photos with your order number to info@planetdesert.com to initiate your return. Shipping fees may apply.
First, lucky them! Second, in the cart — before checkout you’ll find an option to add a custom Greeting Card.
Click the Custom Greeting Card button to browse and select the design you like best. We have gift cards for most occasions.
After selecting your greeting card, scroll to the bottom of the cart. There you'll see a dropdown labeled Add a note to your order.
Use that note box to enter the message you’d like us to include with your gift. We’ll make sure it’s printed and packed with care!
Origin and Habitat, Southern Description: Euphorbia knuthii is a dwarf spiny succulent shrublet with a tuberous main root, which continues into a serpentine caudex, freely branched from the top. It is sometimes accompanied by a number of underground rhizomes. It is closely allied to Euphorbia squarrosa, and Euphorbia Schinzii. It blooms in mid to late summer and the seed capsules ripe about one month later. Cultivation and Propagation: Euphorbia knuthii is an easy ornamental plant to grow, and is a particular favorite of caudiciform plant enthusiasts. Cultivation of this plant is the same as that for the other tuberous varieties of Euphorbia, (e.g. Euphorbia stellata, Euphorbia decidua, etc.), but it is the easiest of all caudiciform Euphorbias to propagate from cutting. It tolerates any conditions (it is practically indestructible), surviving extended neglect and relatively low light. Stem pruning: Every year or two in very early spring, trim off all of the stems, cutting them back to the soil line (or to the roots if you grow your plants with the roots partially exposed). After this pruning, allow the plant to heal at least a week to ten days before watering it. The heavy pruning encourages the growth of many additional branches and keeps the length of each branch comparatively short, and uniform. Exposure: full sun to light shade exposures, Watering: Water regularly during the active growing season. No water should ever be allowed to stand around the roots. Keep almost completely dry in winter. Even though it is extremely drought tolerant, during the active growing season it is best to keep its soil reasonably moist, watering it about once every week. In summer it will also tolerate lots of water Hardiness: tolerate temperatures down to –6ºC and even a little snow. (USDA Zones 9-11).
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