The clump or mound size of a hosta plant is typically described by height and width at maturity. In 2010, the American Hosta Society eliminated clump height as a criterion for miniature hostas; the current standard is that a hosta is a miniature hosta if its leaf blade area is no greater than about 6 square inches (38.7 centimeters), with no restriction on clump spread.
Knowing potential clump size is still important in deciding where to place a hosta in the garden in order to avoid having to move it prematurely when it outgrows the space that has been set aside for it. Hosta retailers often designate and group their stock by clump size at maturity rather than by the leaf-size categories used by the American Hosta Society in classifying hostas.
Right now (22 Aug 2011) I have several new hostas waiting to be planted in the garden or in containers. This entry will set out the clump sizes found for these hostas and subsequent purchases; as time permits, I will go back and add plants already in my collection.
In the list set out below, I have separated information about clump size for my AHS-listed registered and unregistered miniature hostas from the other hostas in my collection. The dimensions are given in the format "height x width" in inches.
CLUMP SIZES FOR JOHN SPANGLER'S HOSTAS
Last updated August 22, 2011
Abbreviations for References Cited: PGTH = Timber Press Pocket Guide to Hostas (2007); TBOLH = The Book of Little Hostas (2010); TH = The Hostapedia (2009)
AHS Registered Miniatured Hostas
H. 'Bitsy Gold' -- 7 x 18 in., fairly fast growing and loose (TBOLH 96); not given in PGTH; 8 x 21 in. (TH 109)
H. 'Blue Mouse Ears' -- 9 x 12 in., moderately fast-growing, fairly upright and loose (TBOLH 120); 6.5 x 11 in., an open mound of horizontal leaves (PGTH 51)
H. 'Cameo' -- 4 x 8 in., tight, with a moderate growth rate (TBOLH 92); not given in PGTH
H. 'Cherish' -- 8 x 12 in., slow-growing, compact (TBOLH 122); not given in PGTH
H. 'Cotillion' -- not treated in TBOLH; not treated in PGTH
H. 'Country Mouse' -- 3 x 6 in., slow growing and flattish (TBOLH 139); [dimensions not given] "should become a mini-sized mound (TH 206); 2.5 x 9 in., a dense irregular mound (PGTH 64)
H. 'Dixie Chick' -- 6 x 15 in., fast-growing, flattish (TBOLH 80); not treated in PGTH
H. 'Frosted Mouse Ears' -- 7 x 12 in., slow growing and flattish (TBOLH 139); not treated in PGTH; [dimensions not given] small, dense mound (TH 320)
H. 'Gaijin' -- 6 x 12 in., fast growing and dense (TBOLH 98); not treated in PGTH; 6 x 15 in. (TH 327)
H. 'Green Eyes' -- 5 x 12 in., fast-growing, dome shaped (TBOLH 100); not treated in PGTH
H. 'Green Mouse Ears' -- not given in TBOLH; not treated in PGTH
H. 'Holy Mouse Ears' -- 6 x 12 in., a slow-growing, flat rosette (TBOLH 63); not treated in PGTH
H. 'Hope' -- 5 x 10 in., neat, with a slow to moderate growth rate (TBOLH 108); not given in PGTH
H. 'Itsy Bitsy Spider' -- not given in TBOLH; not treated in PGTH
H. 'Lakeside Elfin Fire' -- 5 x 10 in., loose and fairly upright (TBOLH 166); not treated in PGTH; 4 x 10 in. (TH 529)
H. 'Lemon Frost' -- not given in TBOLH; not treated in PGTH; 10 x 24 in. (TH 552)
H. 'Masquerade' sport -- [for 'Masquerade':] not given in TBOLH; not treated in PGTH
H. 'Pandora's Box' -- 8 x 12 in., slow-growing, dense (TBOLH 144); 4 x 10 in., a diffuse mound
H. 'Popo' -- 7 x 18 in., dense and fairly fast-growing (TBOLH 70); 7 x 15 in., a dense mound (PGTH 151)
H. 'Slim and Trim' -- not treated in TBOLH; not treated in PGTH
H. 'Stiletto' -- 12 x 24 in., fast-growing and tall (TBOLH 103); 12 x 32 in., a low, cascading, dense mound (PGTH 175)
H. 'Surprised by Joy' -- 6 x 12 in., loose and fairly fast-growing (TBOLH 145); not treated in PGTH
H. 'Teeny-weeny Bikini' --4 x 9 in., low and compact (TBOLH 112); not treated in PGTH; 4 x 9 in. (TH 940)
H. 'Tweeny' -- 3 x 10 in., loose and irregular (TBOLH 89); not treated in PGTH; [dimensions not given] small, dense mound (TH 970)
H. 'Twist of Lime' -- not given in TBOLH; not treated in PGTH
H. 'Woodland Elf' -- not given in TBOLH; not treated in PGTH
H. 'Yellow Eyes' -- not treated in PGTH; dimensions not given, low, dense mound (TH 1037)
AHS Unregistered Miniature Hostas
H. 'Cat's Eye' -- 3 x 12 in., low, flat, fairly dense rosette (TBOLH 137); 5 x 14 in. (TH 172); 2 x 6 in., a low, dense mound (PGTH 59)
H. 'Little Devil' -- not treated in TBOLH; not treated in PGTH
Other Hostas
H. 'Blue Ice' (small) --
H. 'Buttercup Baby' (unregistered) --
H. 'Cracker Crumbs' (small) --
H. 'Craig's Temptation' (small) --
H. 'Doubled Up' --
H. 'Francee' (medium) --
H. 'Great Expectations' --
H. 'June' --
H. 'Liberty' (giant) --
H. 'Little Aurora' (small) --
H. 'Mighty Mouse' (small) --
H. 'Peanut' (small) --
H. plantaginea (medium) -- 24 x 60 in., dome-shaped mound (PGTH 150); 25 x 57 in. (TH 721)
H. 'Praying Hands' (small) --
H. 'Shiny Penny' (small) --
H. 'Silver Halo' (unregistered) --
H. 'Spartan Arrow' (small) --
H. 'Sugar Babe' --