ONTARIO ROCK GARDEN SOCIETY
Germination guide
Genus	Species	Germination	Remarks
Daboecia	cantabrica 'Alba'	A 3	.
Dactylorhiza	elata	A *	sow outside in spring in acid duff, very difficult, grow in moist compost to which has been added soil from parent plant to provide symbiotic fungi
Dactylorhiza	fuchsii	A *	ditto
Dactylorhiza	maculata	A *	ditto
Dalea	gattingeri	A 7	.
Daphne	albowiana	D 6 8
Daphne	albowiana pontica	D 6 8
Daphne	alpina	D 6 8
Daphne	caucasica	H 6 8
Daphne	giraldii	D 6 8 *	poor germination
Daphne	kiusiana	6 8	.
Daphne	kosaninii	! N 6 8
Daphne	mezereum	H 6 8
Daphne	mezereum f. alba	H 6 8
Daphne	mezereum v. rubra	H 6 8
Daphne	oleoides	A 6 8 *	cut clear pop bottle in half, sprinkle seed on 10 cm damp sphagnum moss, cover with plastic; transplant seedling to acid mix in shade outdoors when 5 cm high; protect from rodents and give protection in cold frame first winter
Daphne	oleoides v. glandulosa	A 6 8 *	ditto
Daphne	sp.	6 8	.
Daphne	tangutica	J 6 8
Darmera	peltata	E 7
Datura	bernhardtii	A 4
Datura	innoxia	A
Datura	metel	*	25° C for germination
Datura	metel 'La Fleur Lilac'	*	25° C for germination
Datura	meteloides	D
Datura	sp.	A
Datura	stramonium	A 3
Degenia	all species	A
Degenia	velebitica	A
Delosperma	brunthalleri	.
Delosperma	congestum
Delosperma	ashtonii
Delosperma	cf cooperi	A
Delphinium	'Blue Fountains'	J
Delphinium	'Butterfly'	.
Delphinium	'Galahad'	J
Delphinium	'Pacific Giant'	A
Delphinium	'Sky Blue'	J
Delphinium	Astolat Group	J
Delphinium	alpinum ?	.
Delphinium	anthriscifolium
Delphinium	brunonianum	! K	short viability
Delphinium	caeruleum	! K	ditto
Delphinium	cashmerianum	A	.
Delphinium	decorum	.
Delphinium	glaucum	C
Delphinium	grandiflorum	A
Delphinium	grandiflorum 'Blue Butterfly'	A
Delphinium	grandiflorum 'Blue Elf'	A
Delphinium	grandiflorum or tatsienense	A
Delphinium	likiangense	F 2
Delphinium	menziesii	A	seed has limited viability, store @ 3°C, temps above 15° C inhibit germination
Delphinium	nudicaule	A	.
Delphinium	orfordii	.
Delphinium	oxysepalum	D
Delphinium	pylzowii	F 2
Delphinium	sp.	J
Delphinium	speciosum	.
Delphinium	tatsienense	A
Delphinium	tricorne	! D *	seed destroyed by dry storage  for 6 m
Delphinium	x belladonna	A
Delphinium	zalil	F