Category: Orchid Doctor

CATTLEYAS: Hereditary Influences

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago In breeding they have certain dominant characteristics; refer to A60-14 Read More

CATTLEYAS: How to Delay Blooming

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago On other than C. mossiae try 65 deg.F night temperature November 1 to January 25 or 30, then drop to 55 deg. to May 1, then up to 60 to 65 deg. to flower. A78-909 Read More

CATTLEYAS: Leads; Only One of Four New Ones Produced Flowers

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago This is not uncommon due primarily to culture, but parentage is a factor; try good culture first. A67-1010 Read More

CATTLEYAS: Leaves as Indicators

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Avoid plants with red color unless all the seedlings show red; avoid pleated or irregular leaves. ODA78(l)23 Read More

CATTLEYAS: Leaves with Hooks on Their Ends

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago A pronounced hook to the leaf indicates an award-potential plant; also the lower third of the leaf will be the widest. ODA78(l)23 Read More

CATTLEYAS: Light Requirements

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago To flower moderately well they should have 1,500 fc. A79-124; no buds set if daylight exceeds 18 hours. A80-513 Read More

CATTLEYAS: Minimum Optimums

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago For spring flowering: 55 deg.F.nights, 50% relative humidity, 4,000 fc.in summer and 2,000 fc. in winter; Autumn flowering plants need 50 deg.F nights; 40 to 50% relative humidity, 2,000 fc. in win... Read More

CATTLEYAS: No Bloom on C. Mary Schroeder with 20 Pseudobulbs, Half with Sheaths

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Use night temperature of 55 deg.F, not 68 deg.F.; divide plant. A79-4 Read More

CATTLEYAS: Reasons for Non-flowering

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Some leads do not flower under good cultural conditions; a high percentage of them result from too high night temperature; or, from crowding, shrivelled growth from improper watering and root loss,... Read More

ACID OR ALKALINE: Changing the Values

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Various means can be used: tufa, a limestone form, can be added to paphiopedilums from limestone cliffs; bark composts acidify with age; peatmoss, pine needles, oak leaves in the mix produce acidit... Read More