Hey plant community! I have both this English Ivy and Variegated Ivy that have declined since purchasing a few months ago. All of my other plants are very healthy, kept in humidified air… any suggestions to achieve more growth? They get good indirect light and proper watering; planted in regular potting soil. I have not fertilized either yet. It is important to note that the English Ivy got sunburnt during mid-summer from being too close to the window originally; since then it has not healed. That is why it looks so bare on one half. Anyway.. Suggestions?