We have been using our tulip test greenhouse for a while now. The planning of the desired flowering date at our customers is synchronised with the growth of our tulips in our own test greenhouse. Each lot is sampled before shipment, and is planted and put in the greenhouse at the same time as it was originally meant for our customers. The tulips in our test greenhouse are tested in both soil and water. Each finding is recorded, so that we can continue to improve our products. These tests take place between December and April, so the use of our test greenhouse this year is reaching its end.