Eucalyptus dyed fabrics should be washed separately as excess dye may colour the water. Hand washing ensures gentle handling of the fabric. I use a eucalyptus wool wash in warm water, with a dash of vinegar in the rinse water and drip dry out of sunlight. In cold weather spin the excess water out of the fabric on the gentle cycle of the machine for about 30 seconds, then place in a warm tumble dryer until just dry. The fabric can then be steam ironed on a silk/wool setting.
Eucalyptus dyes on silk can be dry cleaned with Perclean, though I prefer hand washing. The only substance I’ve found to date that strips the colour out of eucalyptus dyed fabric is urine – particularly dog and possum! It’s amazing the adventures the fabric has once it leaves my studio. The only solution to this is wash and then overdye the fabric.