Rhubarb is commonly known as a pie ingredient and it’s gaining popularity in other tasty recipes like salads, sauces, and juice. The rhubarb we eat is actually the green to reddish stalks of an attractive perennial garden plant with large, tropical-looking (inedible) leaves.
When you receive rhubarb plants from Stark Bro’s* they will be bare-root, consisting of dormant crowns with root systems. We ship them this way to reduce the risk of transplant shock and so that rhubarb can be planted both in the fall and in the spring in most areas.
*Plants may also arrive dusted in a lime powder to avoid molding
Planting Bare-Root Rhubarb Plants
Here’s what you need:
- Choose a sunny planting location free of weeds. Rhubarb matures into a large and leafy plant that loves light, so a spot that allows for at least 6 hours of daily sun will suffice. Its large glossy leaves may cause shading issues with other plants, so be sure to allow at least 3 feet of space between each rhubarb plant and other plants.
- Test your garden soil for nutrients and proper pH before planting. Rhubarb plants thrive in a fertile, well-drained soil with a pH between 5.5 and 7.0. If you’re not familiar with your chosen planting site, you can send in a soil sample to your local Cooperative Extension Office to get an analysis done for a small fee. You can also test for moisture and soil pH yourself with our handy Digital Soil Meters.
- Take your hand trowel and dig a planting hole 12″ wide and 12″ deep, making sure to break up the sides and bottom of the hole so that roots can spread and become established. This is especially important in clay-type soils.
- Mix in any soil additives you’re using, like well-rotted/dehydrated manure and compost, in combination with the top soil that was removed from the planting hole. Avoid high-nitrogen fertilizer at planting time, especially in the fall. Back-fill the soil mixture into the planting hole and position your bare-root rhubarb plant so that the crown (top part of the plant, opposite of the root end) ends up 2-3″ below the soil surface.
- Lightly tamp the soil over the newly planted rhubarb to remove any air pockets and water thoroughly.
Rhubarb plants are highly productive once established. After the second year in the ground, you will be able to start lightly harvesting the larger stalks and enjoying as you please. Be sure not to consume any other part of the plant, since only the stalks (not leaves) are safe to eat.
If your rhubarb roots arrive and you are not prepared or able to plant them immediately, don’t worry! You can delay planting by following the steps mentioned in our article, What To Do if You Can’t Plant When Your Order Arrives.
Looking for more information on growing and caring for your rhubarb plants? Check out Stark Bro’s Growing Guide: Plant Manuals for Vegetable Plants.
9 July 2014: The same bare-root rhubarb plant after 8 months in the ground (and after the harsh winter of 2013 and fickle spring of 2014).
Keeping this rhubarb plant well-fed with nitrogen or nutrient-rich organic material during the growing season will help to ensure a happy, healthy, and productive rhubarb plant — ready for harvest of the tangy red stalks in another year or so!