Understanding Valentine Rhubarb
Valentine rhubarb is a distinctive and sought-after variety, prized by gardeners and culinary enthusiasts. Its unique characteristics set it apart from other rhubarb cultivars.
The most notable feature of Valentine rhubarb is its deep red stalks, which maintain their vibrant color throughout the growing season. Unlike some varieties that exhibit green streaks or fade, Valentine consistently produces richly colored petioles. This deep coloration is often accompanied by a milder, less tart flavor profile compared to more common, intensely sour rhubarb types.
This reduced tartness makes Valentine rhubarb particularly versatile in the kitchen, often requiring less added sugar. Its striking visual appeal also enhances dish presentation. These attributes contribute to its popularity as a garden staple and culinary ingredient.
Cultivating Valentine Rhubarb
Successfully cultivating Valentine rhubarb begins with selecting an appropriate planting site. Rhubarb thrives in full sun, requiring at least six to eight hours of direct sunlight daily for robust stalks. Good air circulation also helps prevent fungal issues.
Soil preparation is important for establishing healthy rhubarb plants. Valentine rhubarb prefers well-draining soil rich in organic matter, such as compost or well-rotted manure. A slightly acidic to neutral soil pH (6.0-6.8) supports nutrient availability and root development. Amending heavy clay soils with organic material improves drainage, while sandy soils benefit from organic matter to enhance water retention.
When planting Valentine rhubarb, proper technique ensures the crown establishes successfully. Dig a hole large enough for the root ball, typically 12-18 inches deep and wide. Position the crown so its top, where new buds emerge, is just below or at soil level (1-2 inches deep). Space individual plants approximately 3 feet apart for mature growth and adequate air circulation.
Consistent watering is important, especially during the establishment phase and dry periods. While mature rhubarb plants are relatively drought-tolerant, young plants require regular moisture to develop a strong root system. Aim for deep watering that saturates the soil, encouraging roots to grow downwards. Avoid overhead watering late in the day to minimize leaf moisture and potential disease.
Fertilization supports vigorous growth and productivity. In early spring, before new growth appears, apply a balanced granular fertilizer or a generous layer of compost around the base of the plant. This provides essential nutrients for the upcoming growing season. Regular weeding is also important to reduce competition for water and nutrients.
Valentine rhubarb is generally robust and resistant to many common pests and diseases. However, occasional issues like rhubarb curculio or crown rot can occur. Maintaining good garden hygiene, ensuring proper drainage, and providing adequate spacing helps prevent most problems. Promptly removing any diseased plant material also limits the spread of pathogens.
Harvesting and Using Valentine Rhubarb
Knowing when and how to harvest Valentine rhubarb ensures the plant’s continued health and productivity. Rhubarb stalks are ready for harvest when they are 12 to 18 inches long and have developed their deep red color. It is advised to wait until the second year after planting before any significant harvest, allowing the plant to fully establish its root system.
The proper technique for harvesting rhubarb involves pulling, not cutting, the stalks. Grasp the stalk firmly at its base, near the soil line, and twist gently while pulling upwards. This method helps to cleanly separate the stalk from the crown without leaving stubble that could rot. Always leave at least one-third to one-half of the stalks on the plant to ensure it has enough foliage for photosynthesis and future harvests.
Valentine rhubarb’s distinctive color and milder flavor make it particularly suitable for a variety of culinary applications. Its vibrant red stalks contribute visual appeal to dishes, making it a favorite for desserts. Common preparations include pies, crumbles, tarts, and sauces, where its slight tartness provides a pleasant counterpoint to sweetness. It also makes excellent jams and jellies, often combined with other fruits like strawberries.
While Valentine rhubarb stalks are edible, the leaves are toxic and should never be consumed. Rhubarb leaves contain high concentrations of oxalic acid, which can be harmful if ingested. After harvesting the stalks, always trim and discard the leaves immediately, ensuring they are not accidentally mixed with edible portions or consumed by children or pets.