Rutabaga, a resilient brassica, has been cultivated globally for centuries. Recently, its popularity has surged among gardeners.
This vegetable goes by several names, such as swede or Swedish turnip. While often mistaken for turnips, rutabagas have larger, oval bulbs and require a longer growing period, typically ready for harvest from late summer onward.
Having cultivated rutabaga for years, I've found it to be an easy addition to any garden. Both yellow and purple-fleshed varieties have always been favored by chefs.
Rutabaga produces flavorful bulbs best harvested around 5 inches in diameter
Understanding the Difference: Turnips vs. Rutabagas
Turnips and rutabagas belong to the same family, leading to confusion. Rutabagas are larger than turnips, featuring yellow or purple flesh, while turnips are smaller and mostly white. Taste-wise, rutabagas provide a sweeter flavor, in contrast to the more bitter profile of turnips.
Rutabaga varieties showcase purple or yellow hues
Planting Rutabaga from Seed
Rutabaga is commonly planted by directly sowing seeds in the soil
Traditionally, rutabaga seeds are sown directly in the ground during spring or early summer, depending on climate conditions. Your garden consultant indicates that your hardiness zone affects the planting timeline, potentially allowing for two planting seasons each year.
'In warmer southern regions, rutabagas can be planted twice, first in early spring for a harvest before summer's heat, and again 90 days before the first anticipated frost in fall,' she explains.
'The ideal growing period is the late summer to fall season since frost enhances the sweetness of the rutabagas. For those in northern areas, planting in May or June is preferable for a fall harvest.'
To plant rutabaga seeds, space them thinly, about half an inch deep, with rows 15-18 inches apart. As they grow, thin the seedlings gradually until they're nine inches apart.
According to another gardening expert, starting rutabaga indoors is advisable due to its long growing season. I have also successfully germinated rutabaga in module trays within a greenhouse.
For indoor seed starting, fill a module tray with seed compost from mid-spring, sowing two seeds per module and thinning to retain the strongest. For example, these Seedling Starter Trays at Amazon can minimize root disturbance.
Maintain moisture in the compost for quick germination, ideally above 52°F. Transplant seedlings outdoors from late spring onward.
Discover a variety of rutabaga seeds at True Leaf Market.
Ideal Growing Conditions for Rutabaga
Rutabaga thrives in sunny locations
Rutabagas are adaptable and can grow successfully in traditional gardens, raised beds, or even containers. They prefer full sun and well-draining, fertile soil.
The soil should be slightly acidic. Conducting a soil test before planting is beneficial. While there are methods to acidify the soil, avoid making it overly acidic as this increases the risk of clubroot. Incorporating organic matter like compost or well-rotted manure enhances soil fertility.
In a crop rotation strategy, avoid planting rutabaga where brassicas have grown in the past three years. This practice prevents disease buildup in the soil, benefiting overall soil health.
Rutabaga Care and Maintenance
Consistent watering is crucial for healthy rutabaga
Regular weeding is essential to minimize competition. Promptly removing young weeds is effective, but take care when using a hoe around rutabaga as their shallow roots can be easily damaged.
Monitor watering closely. Rutabagas require one to two inches of water weekly, either from rainfall or manual irrigation, and should not dry out. Insufficient moisture can lead to stunted growth and woody, bitter bulbs.
This is particularly important during hot weather, as their small root systems can't reach far for water. A soil moisture meter from Amazon can help monitor soil hydration while avoiding excess water on foliage to prevent powdery mildew. Implementing drip irrigation can assist in maintaining moisture during summer and reducing fungal risks.
Like other brassicas, rutabagas face pest threats such as aphids, cabbage worms, and cabbage root maggots. An expert suggests that covering the plants with fleece or fine netting can block pests from accessing the crops.
To deter root maggots, she also recommends crop rotation and applying food-grade diatomaceous earth around the base of rutabaga plants to prevent adults from laying eggs.
Rutabagas have a lengthy growing cycle, typically maturing in 90-110 days. Harvest can begin once they reach an adequate size, starting late summer. The exact timing depends on sowing date and conditions, but ideal bulbs are around 4-6 inches in diameter.
These vegetables can be harvested throughout fall and winter as needed. They may even be left in the ground during colder months, with a few frosts enhancing their flavor, although quality diminishes by mid-winter.
Growing Rutabaga in Containers
Rutabaga can be harvested early, and the leaves are also edible
Rutabagas can be successfully cultivated in containers, although they are best harvested young rather than maturing fully. Choose large pots or troughs to provide adequate space for bulb growth.
Ensure your planter has drainage holes and fill it with quality potting compost. Sow seeds directly into the container, thinning seedlings as needed or using transplants started indoors. Position the container in a warm, sunny area.
Container-grown crops require vigilant care to prevent drying out and will need more frequent watering than those in the ground. Check the soil a few inches deep to assess moisture when caring for container plants. Harvest bulbs when they reach a usable size.
Common Questions
How long does it take for rutabaga to mature?
Rutabagas take considerable time to mature, typically between 90 and 110 days from sowing to harvest, influenced by planting time and seasonal conditions.
Do rutabagas prefer sun or shade?
Rutabagas thrive in full sun. While they can tolerate some shade, they ideally require at least six hours of sunlight daily.
If you're looking to diversify your garden this year, consider growing kohlrabi. This unique vegetable develops swollen bulbs that can be eaten raw or cooked, offering a sweet, peppery flavor reminiscent of radish.
