Moss and other bryophytes are non vascular plants. What does that mean, exactly? Unlike vascular plants which have a structure of xylem vessels to assist in the internal transport of water, mosses are Taking plants home on an airplane is probably easier than you think. Keep in mind this was a domestic USA flight. International flights have strict import laws and can be much more difficult. Late spring is the best time to plant lavender as the risk of hard frost passes and the soil warms up. Planting in May ensures the plant establishes its root system before How Much Yield For One Cannabis Plant? Mr. Grow It