1.   The police were forced to grow mature plants from the seeds to prove they were a drug, she said.

2.   These problems are now more or less under control, with the mature plants helping to blanket out the weeds, explains Barbara.

3.   A single mature plant can cover an area two- or three-feet wide and eight- or nine-feet tall.

4.   But it takes five or six years for a hybrid orchid to grow from a sprout in a test tube to a mature plant.

5.   By the way, pokeweed berries, roots and mature plants, especially those that are reddish-tinged, are poisonous.

6.   Columbines are easy to transplant when they have two to three sets of leaves, but not when they are mature plants.

7.   Dig mature plants, and divide the rhizomes.

8.   Even first-year plants will put on a respectable show, and mature plants will bloom heartily from late July until frost.

9.   Height and spread, the numbers of flowers and other characteristics of the mature plant take time to develop.

10.   The cut-up leaves of radicchio and frisee come only from mature plants.