Have any of you had a problem with Aphids on your huechera? Noticed some little green crawlers and was told they were aphids. Have been hand picking them but just this week got some insecticidal soap-hoping it does not hurt the plant. Seems to only bother the one - and forgive me because I'm new to this forum and these varieties but I cannot recall the name. It's of the darker variety so them little lime green guys really stand out. Are they susceptible to any particular type of pests?