By: Jessie Keith
Eggplant is a staple in African, Mediterranean, Middle Eastern, and Asian cuisines, where growing temperatures are hot. Think beyond the standard purple varieties you find at the grocery store. Green, ivory, rose, and magenta types of various shapes and lengths exist, and the best are mild and have few seeds. Some are even ornamental. The biggest challenge to growing them is battling a few common pests. Once these are tackled, plants will reward you with lots of fruits for Szechuan eggplant, eggplant Parmesan, ratatouille, and baba ganoush.
There are many unique types of eggplant grown in Africa, most being variants of the African eggplant (Solanum aethiopicum). The ‘Striped Togo’ is an ornamental variety of African eggplant sold in the US, which has small, egg-shaped fruits of electric orange with green stripes. They are edible but have a very strong flavor, so most opt to add stems of the pretty fruits to late summer and fall arrangements. ‘Turkish Orange’ (Solanum aethiopicum ‘Turkish Orange’) is another African variety with fruits that age to brilliant orange red. These are larger and edible when green.
Several African eggplant varieties are popular in Brazilian cooking and classified as Gilo (or Jiló) eggplant. They are small, bitter, harvested green, and include the small, pear-shaped ‘Comprido Verde Claro’, and round, more bitter ‘Morro Redondo’. Due to limited demand, these unusual eggplant have yet to be adopted by American seed companies, so they are hard to find in the US.
Mediterranean and Middle Eastern Eggplant
The common eggplant or aubergine (Solanum melongena), is the most familiar eggplant to western palates and gardens. It has been grown and selected for hundreds of years in southerly regions of Europe and throughout the Middle East. One of the best from the Mediterranean is the classic Italian heirloom ‘Rosa Bianca’, with its broad, short, mild fruits covered with thin, lavender and cream skin. The French heirloom ‘Ronde de Valence’ is another unique but delicious eggplant that is deep purple, grapefruit-sized, and almost perfectly round. For a large-fruited, heat-tolerant eggplant, choose the Iraqi variety ‘Aswad’ (meaning “black” in Arabic), a new offering from Baker Creek Heirloom Seed. Its dark, pleated fruits can reach a massive 3 lbs.
One American eggplant with a classic pear shape and purple-black skin is ‘Black Beauty’. The 1902 heirloom from Burpee has large fruits with good flavor. Two more American varieties include the AAS winners ‘Gretel‘ (2009 winner), which is petite and has white fruits, and the compact ‘Fairy Tale’ (2005 winner) with its small stature and white-striped purple fruits. Both are very productive and good for small-space gardening.
Eggplant varieties from Asia are noted for their elongated shape, low seed count, and mild flavor. Many were bred in Southeast Asia and have an unusually high tolerance to heat and drought. The brilliant purple ‘Machiaw‘ is a tender, mild, thin-skinned variety that always produces well. For exceptional heat tolerance, choose ‘Pingtung Long‘ an heirloom from Taiwan that produces loads 16″-18″ long magenta fruits through the hottest days of summer. The dark purple ‘Orient Express‘ is an early, tender variety popular in many gardens. Finally, for something more unusual, try the Indian ‘Petch Siam‘, a small, green, striped eggplant favored for curries.
Growing and Harvesting Eggplant
Growing eggplant is not too complicated. Provide them with full sun, warm summer days, good soil with adequate drainage, a little vegetable fertilizer, and water, and they will grow well. (Amend their soil with Fafard Garden Manure Blend before planting, and they will grow even better!) The biggest challenge to their success are two common pests: flea beetles and Colorado potato beetles.
These two pests will destroy plants if given the chance. Flea beetles are tiny, shiny black, and invade in large numbers, hopping from leaf to leaf sucking the juices from the foliage, leaving behind a mass of pock marks. (Read more about these pests here.) To reduce populations, clean old plant debris in fall (where these pests overwinter), till beds in spring, and plant eggplant in late spring to early summer to avoid spring hatches of this pest. Spraying with insecticidal soap or pyrethrin sprays will kill adult beetles and protect plants from summer damage.
Striped Colorado potato beetles lay masses of yellow eggs on the undersides of eggplant leaves in spring. Brownish orange larvae emerge that aggressively feed on leaves. As they grow larger, they cause more damage and can completely defoliate young eggplants. The best protection is to inspect plants for egg masses and remove them on sight. The beetles and larvae are also easy to remove by hand. (Learn more about these pests here.)
Most fruits are ready to harvest when they are fully colored and firm to the touch, while giving slightly when pressed with a finger. Fruits that are too old begin to turn yellow. At this point, they are too seedy and strong to eat.
Eggplant are delicious, easy to grow, and make a great addition to any summer garden. Add them to pasta sauces or your favorite eggplant dishes! They also freeze well for winter storage.
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