Maximum Yield USA 2016 June | Page 126

HYDROPONIC BASIL AND CILANTRO An oversupply of hydroponic basil can be used to create not only products such as pesto, but infused oils, vinegars and salsas. Some varieties of basil may be dried and used as teas while others have medicinal uses. Freshly harvested basil has a limited shelf life as the volatile compounds which contribute to the distinctive flavor deteriorate rapidly. Basil has specific requirements once cut and should not be stored under refrigeration or below 50˚F as chilling damage will occur and leaves will blacken. Harvested basil should be lightly wrapped in plastic Young cilantro plants thrive in hydroponics. and stored at temperatures between 52˚F to 57˚F. Cut stems can be placed in a glass of water at room temperature to maintain shelf life for several days. quality is highest. Since cilantro has a habit of going to seed (bolting) fairly rapidly it is important to select cultivars that will not only grow large, quality foliage, but are also slow to bolt in the warm, protected environment of an indoor garden. Varieties such as Calypso, Santo and Marino are well-suited to hydroponic production, as they are slow to bolt and allow for two to three harvests or cuts before plants need to be replaced. Cilantro seed is large, rounded and easy to handle. It is best sown into individual cubes, cells or pots of sterilized, free-draining substrate, as seedlings are not suited to transplanting. Germination occurs within five days at 68˚F to 78˚F, with seedlings requiring warmth (above 68˚F) and moderate light levels to prevent elongation and tall, weak growth. Under hydroponic production many growers sow several seeds into each planting site Cilantro (Coriandrum sativum), sometimes or pot and grow these mini bunches for just referred to as leaf coriander, Chinese or a few weeks before cutting. By using sucMexican parsley or simply as coriander in many cessional sowings every two to three weeks, countries, is a fast-growing, warm-season annual fresh cilantro can be harvested year-round, herb. Cilantro and coriander are the same minimizing the issue of plants bolting after plant—cilantro refers to the two to three harvests. flat, fan-shaped leaves, while For small-scale indoor coriander refers to the seeds gardens, cilantro can be that are ground and used as harvested at any stage from a spice. Cilantro leaves have young seedlings (microa characteristically different greens) through to mature aroma and flavor profile plants, depending on the than the ground seeds, but flavor intensity required. both are frequently used in Younger plants are tenderer the same dish, particularly in and the flavor milder, while Indian cuisine. older plants, particularly The cilantro flowers are also those about to flower, edible, used raw in salads develop stronger, sometimes and as a garnish. Cilantro is slightly bitter flavors. Freshly a fresh herb with a limited cut cilantro has a high rate shelf. Its flavor and aroma of respiration and should diminishes with shipping be used within a few hours and storage and the delicate of harvest. Where cilantro foliage is easily damaged. For needs to be stored after cutthis reason, it is an excellent ting, refrigeration in plastic herb to grow in an indoor packaging at 32˚F gives the garden to be harvested just longest shelf life and prevenBasil and cilantro grow well when combined with other warm-season herbs. before use when its flavor tion of post-harvest wilting. Cilant ro 124 Maximum Yield USA  |  June 2016