have been growing a variety call tripe crown which are thornless for 12+ years which is a cane type and very easy to propagate. sorry to say have never grown bush type so my knowledge of that type is very limited. purchasing a quality crown. first off you want to pick a variety that grows well in your zone, most blackberries have a hardness growing range of zone 5-9< personally picked a type that was in the middle>. 12 years ago there was not selection compared to today. you want to purchase from a reputable nursery/ catalog. millers which is now starks http://www.starkbros.com/ http://noursefarms.com/ When ordering you will more in likely receive Bare root plants so have your planting site ready before your Shipping date. site preparation blackberries like loamy soil and full sun, but they will tolerate most soil types. once you decided to grow them time to find a location, for best production you should choose to run your tellis system from east to west. depending on your soil you may need to amend the soil. trellis system this is up to you.. for ease of picking would recommend 6' high with 2' buried= 8' poles you can use a single wire, here we use the double tee type with cross arms mounted 3' and 6' with a span of 2' poles spread 12' apart<4 plants between poles> trellis systems spread 8" apart Planting Once you have the trellis system in place time to prepare the Holes, dig the hole 15" wide and 12" deep,take the shovel and break up the soil put the bare root or potted plant into the hole and fill In with the soil and lightly fertilize and water. watering 1 to 2 inches a week here we use soaker hoses on both sides of the crowns about 10" to either side. fertilizer 13-13-13 works great here, but you should have your soil tested in the fall to see if you need to adjust, now with that said i do add extra triple phosphate and greensand in the spring and after that 13-13-13 mid june. mulching and weeds mulching is a great idea and should be done during the fall.. if you are starting a new area once you have set your poles and prepared your planting holes for the berries laydown weed block fabric. where you are going to plant cut the fabric back 10" for ease of planting. a few things to think about mulch most local nurseries will have a couple types of mulch single grind.... it's rough could be from land clearing/ storm damage/ diseased trees.... double grind.. same as above but a year old 2-3 year old aged mulch thats what you want when putting down mulch you should put a layer of 3-5" and keep it 8" away from the crown. pest control that is up to how you wish to control them, organic or petrochemical. petrochemical will kill everything and should not be use 7-14 days before harvest organic is more friendly.. word......neem oil ok time for some terminology and photos floricane...... last years growth that produces this years berries primocane ..... this years growth that produces next years berries mother... the original plant daughter a clone of the mother this is last years primocanes.. photo from today this years floricanes.....photo from last year now while there are producing they are growing next years primocanes for best production you want to top the primocane top at 6' so there is more energy for the side shoots to run. you can see me cutting the top off and the primo runners for next year. now for propagation all you need to do is when the runners get long enough is to take the tip and put into a pot of soil and by that fall you will have a daughter ready to plant in the spring. if you live in a colder climate you would want to either cover the pot in mulch or bury it. and that's it...... here's a photo from a early picking from last year. once they really went to ripening we would pick 3-5 gallons twice a week.. nice thing about blackberries everyone wants them, we sell them for $ 6 a quart $20 a gallon last year was one of our better years the berries we sold paid for half of our property tax.