OrachPlantHarvesting. Orach is an ancient crop entertaining a more recent resurgence in popularity. Botanically its name Atriplex hortensis comes from the French “arroche” and... Orach mountain spinach comes in a variety of colors ready to enliven any recipe that calls for spinach. Harvestingorach is very simple. Just wait for the plant to get about 6 inches tall, and then you can start harvesting the leaves. So let's look at how to grow orach, from planting to harvesting.Orach seeds can be sown from spring to early summer and are ideal for succession planting. Orach seeds should be ready to harvest in approximately 75-100 days. To harvest the seeds, allow the plant to grow and form seed heads and the seeds to dry on the plant. Orachharvesting. It is a fast growing plant and its harvest can be done 1 – 2 months after sowing. An adult plant can produce about 400g. of vegetables. If your orache plants are tightly spaced, harvest them all the way down to one or two inches above the soil. Once they grow back up, you’re ready to harvest again for fresh salads and greens. What Colour is spinach? How do you harvestOrach? Harvestingorach is very simple. Just wait for the plant to get about 6 inches tall, and then you can start harvesting the leaves. OrachPlanting Guide. Quick Facts About Orach. Orach is a beautiful herb that grows into an edible landscape.Planting Location. Plant in full sun with well drained, sandy to loamy, soil. How and When to PlantOrach. Orach can be grown much like spinach. Sow the seeds outdoors in early spring, as soon as the soil can be worked. 1. What is Orach? (And Why You Should Grow It) 2. Basics of PlantingOrach 3. Harvesting and Using Orach 4. Get started With Orach. First year plantingorach. Very tasty and colorful. I really don’t like spinach, but these leaves are tasty. They’ve gone to seed. Very pretty seeds. I was unsure of when to harvest. Caring for Orach. Keep plants moist by mulching and regular watering and begin harvesting leaves when the plants are about 6 inches tall which is about 50 days after sowing. PlantingOrach.Harvesting and Using Orach. The young, tender leaves are really lovely eaten raw in salads and wraps, especially if you like really colorful food.