Encyclopedia
Definitive guides for crops, pests, and agricultural diseases.
Arugula (Selvatica)
Arugula (Selvatica) is an annual leafy green vegetable renowned for its peppery flavor and robust nutritional profile. It is a part of the Brassicaceae family and thrives in cooler climates, making it a popular choice for spring and fall plantings.
View Guide
Arugula (Wild Roquette)
Arugula, known for its peppery leaves, is a versatile leafy green widely used in salads and garnishes. It's a fast-growing, cool-season crop that thrives in various climates with minimal care.
View Guide
Asafoetida Resin
Asafoetida resin is a pungent oleo-gum-resin harvested from the taproot of the Ferula assa-foetida plant, prized worldwide as a culinary spice and traditional remedy. The crop requires arid conditions, precise irrigation, and careful root management to produce high-quality resin. Commercial cultivation is concentrated in arid regions of Iran, Afghanistan, and parts of India.
View Guide
Ash Gourd (Winter Melon)
Ash Gourd, also known as Winter Melon, is a versatile crop known for its large, waxy fruit. It thrives in warm climates and is valued for both culinary uses and traditional medicine.
View Guide
Ashwagandha Root
Ashwagandha Root is a resilient medicinal shrub native to arid regions of India, the Middle East, and parts of Africa. Its tuberous roots are harvested for adaptogenic and therapeutic uses after 150-180 days of growth. This guide delivers professional-grade cultivation, care, and post-harvest protocols for commercial and home growers.
View Guide
Asparagus
Asparagus is a long-lived perennial vegetable prized for its tender spring spears and exceptional productivity once established. With proper site selection, deep soil preparation, and disciplined harvest timing, a well-managed asparagus bed can remain productive for 15 to 25 years or more.
View Guide
Asparagus (Jersey Knight)
Asparagus (Jersey Knight) is a high-performing, all-male asparagus hybrid prized for thick spears, cold hardiness, strong disease tolerance, and long-lived productivity. It is especially valued by market growers and serious home gardeners because it establishes a durable perennial bed and produces excellent spring harvests for 15 years or more when managed correctly.
View Guide
Asparagus (Mary Washington)
Mary Washington Asparagus is a popular, hardy, and perennial variety known for its excellent disease resistance and high yield. Ideal for both commercial and home gardens, this variety thrives in well-drained, fertile soils and is appreciated for its thick, tender spears.
View Guide
Asparagus (Purple Passion)
Asparagus (Purple Passion) is a distinctive purple-speared cultivar of garden asparagus prized for its sweet flavor, low fiber content, and striking color. It is a long-lived perennial crop that rewards careful site preparation and disciplined early-year management with productive harvests for 10 to 20 years or more.
View Guide
Aster
Aster is a versatile herbaceous perennial valued for its late-season blooms that support pollinators and cut-flower markets. This professional growing guide covers soil preparation, propagation, integrated pest management, and harvest techniques to maximize both ornamental and commercial yields.
View Guide
Astilbe
Astilbe is a shade-loving herbaceous perennial prized for its feathery flower plumes and fern-like foliage that thrives in consistently moist, organic-rich soils. It is widely grown in temperate gardens, woodland borders, and moist borders for its long-lasting summer color and deer resistance.
View Guide
Ataulfo Mango
Ataulfo mango is a premium dessert mango cultivar prized for its buttery texture, low fiber, rich sweetness, and small flattened seed. Best grown in frost-free tropical to warm subtropical climates, it rewards careful site selection, disciplined irrigation, and canopy management with highly marketable golden fruit.
View Guide
Atemoya (African Pride)
Atemoya 'African Pride' is a superior hybrid custard apple cultivar renowned for its large, sweet fruits with creamy, pineapple-like flesh. This tropical evergreen tree thrives in subtropical climates, producing high yields of premium-quality fruit ideal for fresh markets. Growers prize its vigor, disease resistance, and exceptional flavor profile.
View Guide
Atemoya (Geffner)
The Geffner atemoya is a superior hybrid cultivar of Annona × atemoya, renowned for its large, sweet, creamy fruits with excellent flavor and high yields. This subtropical tree thrives in warm climates, producing heart-shaped fruits that blend the best traits of cherimoya and sugar apple parents. Ideal for commercial orchards and home gardens seeking premium tropical fruit.
View Guide
Atlantic Giant Pumpkin
Atlantic Giant Pumpkin is the iconic giant-fruited pumpkin cultivar grown for exhibition size, aggressive vine growth, and exceptional weight potential. Unlike pie pumpkins, it demands intensive soil preparation, disciplined fruit selection, and precise irrigation and fertility management to reach elite performance.
View Guide
Aunt Ruby's German Green Tomato
Aunt Ruby's German Green is a rare, heirloom beefsteak-type tomato prized for its large, sweet, and tangy fruit that remains green when ripe. This indeterminate variety offers exceptional flavor, high yields, and striking emerald flesh, making it a favorite among home gardeners and small-scale growers seeking unique tomatoes.
View Guide
Aus Rice (Dharial)
Aus Rice, also known as Dharial, is a traditional rice variety grown predominantly in South Asian regions. This guide covers its botanical profile, ideal growing conditions, careful propagation methods, and essential care procedures.
View Guide
Avocado
Avocado is a long-lived subtropical fruit tree valued for its nutrient-dense, oil-rich fruit and its strong market demand. Successful production depends on excellent drainage, frost protection, thoughtful irrigation, and careful cultivar and pollination planning, because avocado roots are highly sensitive to waterlogging and salinity.
View Guide
Azalea
Azaleas are acid-loving flowering shrubs prized for their vibrant spring blooms and compact growth habits. This definitive growing guide covers every aspect of cultivation from soil preparation to pest management, enabling gardeners and commercial growers to achieve consistent, high-quality results.
View Guide
Azolla
Azolla is a fast-growing aquatic fern prized for nitrogen fixation, rapid biomass production, and use as green manure, livestock feed, and biofertilizer in rice systems worldwide.
View Guide
Azoychka Tomato
Azoychka Tomato is a rare Russian heirloom variety prized for its bright yellow-orange fruits, exceptional flavor, and cold tolerance. This indeterminate plant produces medium-sized, slightly flattened tomatoes with a rich, tangy-sweet taste and high vitamin content. It performs well in cooler climates and is favored by home gardeners and market growers seeking unique, high-yielding varieties.
View Guide
Babassu (Attalea speciosa)
Babassu (Attalea speciosa) is a majestic feather palm native to the Amazon basin, renowned for its versatile nuts yielding high-quality oil, fiber, and charcoal. This comprehensive guide provides professional agricultural insights on cultivation, from propagation to harvest, ideal for tropical agroforestry systems. Discover optimal soil, climate needs, pest management, and companion planting strategies for sustainable babassu farming.
View Guide
Bacaba (Oenocarpus bacaba)
Bacaba (Oenocarpus bacaba) is a majestic Amazonian palm renowned for its clusters of small, purple-black fruits with a creamy, refreshing pulp ideal for juices, wines, and desserts. Thriving in humid tropical rainforests, it offers small farmers a high-value, low-maintenance crop with substantial yields after 5-7 years. This guide provides expert cultivation techniques for sustainable production.
View Guide
Bacillus subtilis
Bacillus subtilis is a gram-positive, spore-forming bacterium commonly used as a biopesticide and plant growth promoter in agriculture, though misapplication can lead to unintended plant stress. This guide addresses diagnostic symptoms of overgrowth or contamination mimicking pest issues and provides organic management strategies for balanced use. Learn identification, lifecycle, and prevention for healthy crops.
View Guide