Late Summer and Fall are the best times to collect native wildflower and grass seeds. It is not an easy task, because we are often in competition with other creatures who find the seeds we seek appetizing; and we also are at the mercy of weather conditions that often hasten seed dispersal---thistles and milkweeds are good examples.
To be a good collector you have to be a good observer and persistnt. I have some suggested procedures you can follow if you would like to begin to collect native plant seeds for your landscape or to share with others. Based on my experience and observations the following suggestions will assist you in collecting good quality seed and will give you improved chances for success.
ONE---Always carry a roll of pink or orange marking tape and when you see a plant blooming or a good site for collecting, tie a piece of the tape to the plant or a nearby conspicuous piece of vegetation. Plants often fade after blooming and other fill the void, making their location hard to find.
TWO---Check your selected sites on a weekly basis once the plant has stopped blooming. Each plant is different. Some set seed and mature quickly, while others take months. As you work with them you will soon discover the best approach to get the best seed.
THREE---Determining when to collect can be tricky. Usually a brown seed head indicates maturity, but not always. If the plant has a lot of seed heads or pods I will remove one and crush it---if the seeds are brown, dark, hard they are most likely ready to collect. I have discovered that if you split a milkweed pod open while it is still attached to the plant, green seeds will continue to mature, but if you remove the pod while green, the seed may not be any good. Patience is a necessity.
FOUR---To be a good collector, you must follow good science. ALWAYS use PAPER bags to collect and store your collected seed heads.Be sure to label the bag with the NAME of the plant, DATE collected, LOCATION and the name of the COLLECTOR. Most of the time a lunch bag works best for collection. If the seed heads are wet, you must dry them or they will very quicky get moldy and the seed will be destroyed. Spread them in cardboard trays in the sun or next to your furnace. Once the seeds heads are dry, store them in paper bags in a dry mouse and bug-proof container until you are ready to proceeed with cleaning. Over the years we have often done our cleaning in the winter time well after the collecting season is over.
FIVE---Cleaning seed is often a good social event---a lot of volunteers sitting around doing a relatively boring set of tasks but with lots of time to discuss plants, politics, the weather
and the latest gossip. This may or may not be a draw for volunteers to join in. Strangely enough the volunteers that I work with don't seem to mind the tedium. Each plant has to be cleaned differently. Some seeds just easily fall out of the heads once they are crushed, while others have to be pounded into submission.
SIX---The final stage of seed preparation is separating the seed from the chaff. We use screens with different mesh sizes. Some seeds are microscopic, while others are quite large. Sometimes the seeds has to be screened a number of times before they are clean enough to use.
SEVEN----Seed storage is very inportant. You do not want to lose the seed after many hours of hard work. Once the seed is clean and dry I have found it can be safely stored in Zip-lock bags. Some people prefer small paper bags, but that leaves the seed vulnerable to bugs, etc. Be sure to label each bag with the name, date collected, date cleaned, location of the original plant and name of the collector. For small amounts of seeds a 3x5 card and a snack zip-lock works best.
Now is the time to start collecting , if you have not already begun.
Those of you who have meadows should take a look at them soon for current candidates for collection. Black-Eyed Susan, Ox-Eye Sunflower and Wild Bergamot are ready in many locations and should be collected soon.
I have been collecting seeds since August and I find new sites just about every day.
We already have at least 5 potential meadow sites for seed from this season, so we need to get started.
Seed collection at Middle Creek Wildlife Management Area will begin on Thursday October 1, 2009. We will collect at least once a week through November---other dates will be announced.
We meet at the Visitor Center at 9 am and work until noon or so. The best equipment is a good pair of leather gloves and hand clippers. Snacks and drinks will be provided.
Come join the fun and learn something in the bargain.