Encyclopedia
Definitive guides for crops, pests, and agricultural diseases.
Rosso Sicilian Tomato
Rosso Sicilian Tomato is a rare, heritage Italian variety prized for its intense flavor and deep red, ribbed fruit. It performs well in Mediterranean-style climates and is favored by home gardeners and market growers for its exceptional culinary quality.
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rudbeckia
Rudbeckia, commonly known as black-eyed Susan, is a hardy, sun-loving perennial or biennial prized for its bright daisy-like blooms and exceptional drought tolerance. This definitive guide covers soil preparation, propagation, seasonal care, and organic pest management to ensure abundant, long-lasting flowers.
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Rue
Rue is a hardy, aromatic evergreen herb traditionally grown for its medicinal, culinary, and insect-repelling properties. It thrives in full sun and well-drained soils, tolerating drought once established.
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Rukam (Flacourtia rukam)
Rukam (Flacourtia rukam) is a resilient tropical shrub producing tangy, vitamin-rich fruits ideal for fresh eating, jams, and preserves. Thriving in diverse soils and hot climates, it offers small farms a low-maintenance, high-yield option with strong pest resistance. This guide provides expert cultivation techniques for optimal production.
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Runner Bean (Painted Lady)
Runner Bean 'Painted Lady' is a vibrant, dual-purpose crop known for its ornamental flowers and edible pods. Recognized for its easy cultivation and attractive appearance, this bean is ideal for backyard gardeners and small farms.
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Runner Bean (Scarlet Emperor)
Runner Bean 'Scarlet Emperor' is a prolific climbing bean known for its vibrant red flowers and delicious pods. Ideal for temperate climates, it can be easily grown in gardens and provides both decorative and edible benefits.
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Runner Peanuts
Runner peanuts are a high-yielding market type of peanut prized for their uniform kernel size, strong flavor after roasting, and widespread use in peanut butter production. They require a long, warm growing season, loose well-drained soil, and careful management during flowering, pegging, and pod fill to achieve top yields and quality.
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rushes
Rushes are versatile wetland perennials valued for erosion control, soil remediation, and sustainable fiber production in marginal or waterlogged agricultural land.
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Russet Burbank Potato
Russet Burbank is the classic long, brown-skinned baking and processing potato best known for fries, baked potatoes, and long storage. It is a late-maturing cultivar with high dry matter, strong culinary performance, and demanding management needs, especially around fertility, irrigation consistency, and disease prevention.
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Rutabaga (American Purple Top)
Rutabaga (American Purple Top) is a cool-season root crop prized for its large, sweet, purple-shouldered bulbs that combine the best traits of turnips and cabbage. This guide delivers professional-grade, field-tested growing advice for home gardeners and commercial growers seeking reliable yields and long-term storage.
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Rutabaga (Joan)
Rutabaga (Joan) is a high-yielding, cold-hardy root vegetable prized for its smooth, mild-flavored yellow flesh and reliable storage qualities. This cultivar excels in cool-season production with strong disease resistance and uniform roots ideal for both fresh markets and winter storage.
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Rutabaga (Laurentian)
Laurentian rutabaga is a cold-hardy, high-yielding root crop prized for its smooth, purple-shouldered globes and sweet, dense flesh. This guide covers every stage from soil preparation through long-term storage with professional-grade, research-backed practices.
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Rutabaga (Marian)
Rutabaga (Marian) is a hardy, cool-season root crop prized for its large, globe-shaped yellow-fleshed roots and sweet, nutty flavor after frost exposure. This variety offers excellent disease resistance and reliable yields for both home gardeners and commercial growers. It thrives in well-drained soils and is best suited to temperate climates with cool autumns.
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Rye
Rye is a hardy temperate cereal grain valued for its exceptional cold tolerance, ability to grow on lighter and less fertile soils, and usefulness as both a grain crop and cover crop. It is widely grown for bread flour, animal feed, forage, straw, and soil improvement, making it one of the most versatile small-grain species in diversified farming systems.
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Rye (Aroostook)
Rye (Aroostook) is a hardy cereal grain variety known for its adaptability to colder climates and diverse soil types. It is primarily used as a cover crop, forage, and grain production due to its resilience and growth efficiency.
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Rye (Dankowskie)
Dankowskie rye is a robust, resilient variety known for its adaptability to low-fertility soils and colder climates. It is primarily cultivated for grain production and is valued for its use in bread-making, brewing, and animal fodder.
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Rye (Gazelle)
Rye (Gazelle) is a robust, winter-hardy cereal grain known for its adaptability in a variety of climates. Its impressive resilience makes it a popular choice for cover cropping, forage, and grain production.
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Saba Banana
Saba banana is a large, cooking-type banana widely grown in the Philippines and across humid tropical regions for its heavy bunches, strong wind tolerance, and versatile fruit. Unlike dessert bananas, it is typically harvested mature-green for frying, boiling, or processing, though fully ripe fruits can also be eaten fresh when soft and aromatic.
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Safflower Petals
Safflower petals are the vibrant florets of Carthamus tinctorius, an ancient oilseed crop grown worldwide for natural dyes, culinary coloring, and medicinal uses. The plant produces drought-tolerant, thistle-like heads that yield bright yellow-to-red petals rich in antioxidants. This guide covers every stage from soil preparation through harvest and storage for reliable commercial or home production.
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Safflower Seed
Safflower is a resilient, drought-tolerant oilseed crop prized for its high-quality edible oil, birdseed, and industrial applications. This deep-dive guide covers every stage of cultivation from soil preparation through post-harvest storage to help growers maximize yield and oil content.
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Saffron Crocus
Saffron crocus is a sterile, autumn-flowering geophyte cultivated for its vivid red stigmas, the world’s most valuable spice by weight. Successful production depends on sharply drained soil, dry summer dormancy, precise harvest timing, and careful corm management to maintain vigor and yield over multiple seasons.
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Safou (African Pear)
Safou, also known as African Pear or Bush Mango, is a nutrient-rich fruit tree native to West and Central Africa, prized for its creamy, buttery pulp that's enjoyed roasted, boiled, or raw. This comprehensive growing guide covers everything from propagation to harvest, making it ideal for tropical farmers seeking high-value, resilient crops. With proper care, Safou trees yield abundantly for decades, providing both food security and income opportunities.
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Sage
Sage is a hardy, aromatic perennial herb valued for culinary, medicinal, and ornamental uses. It thrives in well-drained soils and full sun, making it an excellent choice for both home gardens and commercial herb production.
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Saguaro
The saguaro is a monumental columnar cactus native to the Sonoran Desert, prized for its iconic stature, ecological value, and long-term cultivation potential in arid landscapes. This definitive guide covers every aspect of successful saguaro production from soil science to harvest.
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